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Worksheets

Page 1

Total questions: 143

Worksheet time: 1hrs 12mins

Name
Class
Date
1.

What is 27 + 18?

a)

46

b)

45

c)

43

d)

44

2.

Solve: 63 − 29

a)

35

b)

34

c)

36

d)

32

3.

A box has 24 pencils. You buy 17 more. How many pencils do you have now?

a)

39 pencils

b)

40 pencils

c)

41 pencils

d)

42 pencils

4.

Mia had 75 stickers. She gave 28 to her friend. How many stickers are left?

a)

48 stickers

b)

46 stickers

c)

45 stickers

d)

47 stickers

5.

Which expression shows making a ten to add 9 + 7?

a)

9 + 7 = 9 + 1 + 6

b)

9 + 7 = 8 + 8

c)

9 + 7 = 10 + 7

d)

9 + 7 = 7 + 7

6.

What number makes this true: 56 + __ = 100

a)

45

b)

44

c)

43

d)

42

7.

A fruit stand sold 38 apples in the morning and 27 in the afternoon. How many apples were sold in total?

a)

63 apples

b)

66 apples

c)

64 apples

d)

65 apples

8.

You need to find 84 − 37. Which estimation is closest?

a)

About 50

b)

About 55

c)

About 40

d)

About 45

9.

Liam walked 1,245 steps on Monday and 1,378 steps on Tuesday. How many steps did he walk in all?

a)

2,633 steps

b)

2,623 steps

c)

2,613 steps

d)

2,643 steps

10.

A bookshelf holds 90 books. There are 54 on the shelf now. How many more books are needed to fill it?

a)

37 more

b)

36 more

c)

35 more

d)

34 more

11.

The picture shows 1 block plus a stack of 4 blocks. How many blocks in total?

a)

5 blocks total

b)

6 blocks total

c)

3 blocks total

d)

4 blocks total

12.

What addition sentence matches the picture of 1 block and 4 blocks together?

a)

1 + 2 = 3

b)

1 + 3 = 4

c)

1 + 4 = 5

d)

2 + 4 = 6

13.

Which subtraction sentence is true about the total 5 blocks if you remove 1 block?

a)

5 − 1 = 2

b)

5 − 1 = 3

c)

5 − 1 = 4

d)

5 − 1 = 5

14.

You start with 4 blocks and add 1 more. What is the sum?

a)

6 blocks total

b)

3 blocks total

c)

4 blocks total

d)

5 blocks total

15.

Which number sentence shows making a five using addition?

a)

3 + 1 = 5

b)

4 + 2 = 6

c)

2 + 1 = 4

d)

2 + 3 = 6

16.

If the stack has 5 blocks and you take away 4 blocks, how many remain?

a)

0 blocks remain

b)

2 blocks remain

c)

1 block remains

d)

3 blocks remain

17.

Which shows the commutative property of addition using 1 and 4?

a)

1 + 4 = 6

b)

4 + 1 = 5

c)

1 + 4 = 5

d)

4 + 1 = 4

18.

A student writes 1 + 4 = 6. What is the correct fix?

a)

Change 6 to 5

b)

Change + to −

c)

Change 1 to 2

d)

Change 4 to 5

19.

To find 5 − 4, which strategy works best?

a)

Skip-count by twos

b)

Multiply 4 × 1

c)

Count up from 4 to 5

d)

Add 5 + 4

20.

Which pair of numbers also makes a sum of 5?

a)

0 and 5

b)

3 and 3

c)

1 and 1

d)

2 and 4

21.

The picture shows 1 orange block added to a stack of 4 orange blocks to make a green stack of 5 blocks. Which equation matches the picture?

a)

5 − 1 = 3

b)

2 + 3 = 6

c)

4 + 1 = 3

d)

1 + 4 = 5

22.

If you start with 5 blocks and take away 1 block, how many blocks remain?

a)

2 blocks remain

b)

4 blocks remain

c)

3 blocks remain

d)

5 blocks remain

23.

Which number sentence shows the same total as 1 + 4?

a)

4 + 4

b)

2 + 3

c)

3 + 1

d)

1 + 5

24.

A tower has 4 blocks. You add 1 more block. What is the new height in blocks?

a)

4 blocks tall

b)

3 blocks tall

c)

6 blocks tall

d)

5 blocks tall

25.

Which subtraction fact is the inverse of 1 + 4 = 5?

a)

4 − 1 = 5

b)

5 − 5 = 4

c)

5 − 4 = 1

d)

5 − 3 = 1

26.

You have 5 blocks in a tower. If you remove the top block and then remove one more, how many blocks are left?

a)

4 blocks left

b)

3 blocks left

c)

1 block left

d)

2 blocks left

27.

Choose the fact family that fits the numbers 1, 4, and 5.

a)

Neither set of equations

b)

1 + 4 = 5; 4 + 1 = 5

c)

5 − 4 = 1; 5 − 1 = 4

d)

Both sets of equations

28.

A student says 1 + 4 equals 6 because the tower looks tall. What is the correct reasoning?

a)

Four more than one makes six

b)

Two more than four makes six

c)

One more than four makes five

d)

Five less than one makes four

29.

If the green tower shows 5 blocks, which expression does NOT equal 5?

a)

5 − 0

b)

1 + 4

c)

2 + 3

d)

6 − 2

30.

Plan a way to check that 1 + 4 equals 5 using blocks. Which plan works best?

a)

Make a stack of four, subtract two, count all

b)

Make a stack of three, add three, count all

c)

Make a stack of five, add two, count all

d)

Make a stack of four, add one, count all

31.

Two block stacks are shown. The left stack has 2 blocks, and the right stack has 3 blocks. What is the total number of blocks when the stacks are combined?

a)

6 blocks in total

b)

5 blocks in total

c)

4 blocks in total

d)

7 blocks in total

32.

A toy stack has 2 blocks. You add 3 more blocks to the stack. What number sentence matches this situation?

a)

2 + 3 = 7

b)

2 + 3 = 6

c)

2 + 3 = 5

d)

2 + 3 = 4

33.

Which addition fact helps you find 2 + 3 quickly using make-a-five facts?

a)

3 + 3 = 6 helps

b)

1 + 4 = 5 helps

c)

4 + 4 = 8 helps

d)

2 + 2 = 4 helps

34.

If you have 5 blocks and remove 3 blocks, how many blocks are left?

a)

4 blocks left

b)

1 block left

c)

2 blocks left

d)

3 blocks left

35.

Which fact family includes the numbers 2, 3, and 5?

a)

3 + 5 = 8; 8 − 5 = 3; 8 − 3 = 5

b)

2 + 5 = 7; 7 − 2 = 4; 7 − 4 = 3

c)

1 + 4 = 5; 5 − 4 = 1; 5 − 1 = 4

d)

2 + 3 = 5; 5 − 2 = 3; 5 − 3 = 2

36.

You see a 2-block stack and a 3-block stack. If you double the total number of blocks, how many blocks do you have?

a)

6 blocks after doubling

b)

12 blocks after doubling

c)

8 blocks after doubling

d)

10 blocks after doubling

37.

Which expression shows adding three more to two?

a)

2 × 3

b)

3 + 2 − 3

c)

3 − 2

d)

2 + 3

38.

Choose the equation that uses the commutative property to show the same sum as 2 + 3.

a)

5 − 2

b)

3 − 2

c)

2 − 3

d)

3 + 2

39.

A stack grows from 2 blocks to 5 blocks. How many blocks were added?

a)

Added 4 blocks

b)

Added 2 blocks

c)

Added 1 block

d)

Added 3 blocks

40.

You want to check 2 + 3 = 5 using subtraction. Which subtraction equation is correct?

a)

5 − 2 = 4

b)

5 − 1 = 3

c)

5 − 3 = 2

d)

5 − 5 = 3

41.

What total do the two orange stacks show when added together in the image?

a)

Seven blocks in all

b)

Four blocks in all

c)

Five blocks in all

d)

Six blocks in all

42.

Which equation matches the model with two orange stacks and one tall green stack?

a)

5 − 2 = 3

b)

3 + 2 = 4

c)

2 + 3 = 5

d)

2 − 3 = 5

43.

If the green stack shows 5 blocks, how many more blocks than the first orange stack does it have?

a)

Two more blocks

b)

Three more blocks

c)

Four more blocks

d)

One more block

44.

Which subtraction sentence is true using the total shown by the green stack?

a)

5 − 3 = 2

b)

5 − 4 = 3

c)

5 − 1 = 4

d)

5 − 2 = 1

45.

If you start with the taller orange stack and add the shorter orange stack, what is the result?

a)

3 + 2 equals 4

b)

3 + 2 equals 5

c)

3 + 2 equals 6

d)

3 + 2 equals 7

46.

Which number makes this statement true: 5 − __ = 3?

a)

1

b)

4

c)

2

d)

3

47.

Choose the expression that represents putting both orange stacks together.

a)

2 + 3

b)

2 × 3

c)

2 ÷ 3

d)

3 − 2

48.

Which fact family member is missing: 2 + 3 = 5, 3 + 2 = 5, 5 − 3 = 2, ___?

a)

2 − 3 = −1

b)

5 − 5 = 0

c)

5 − 2 = 3

d)

3 − 2 = 1

49.

A student says the green stack shows 6 blocks because 2 + 3 equals 6. What is the correct response?

a)

Agree because two plus three is six

b)

Disagree because five minus two is six

c)

Agree because three plus two is six

d)

Disagree because two plus three is five

50.

You remove the shorter orange stack from the green stack. How many blocks remain?

a)

One block remains

b)

Three blocks remain

c)

Two blocks remain

d)

Four blocks remain

51.

The picture shows a stack of 3 bricks plus a stack of 2 bricks. How many bricks are there in total?

a)

7 bricks total

b)

6 bricks total

c)

5 bricks total

d)

4 bricks total

52.

If you start with 5 bricks and remove 2 bricks, how many bricks remain?

a)

3 bricks remain

b)

4 bricks remain

c)

2 bricks remain

d)

1 brick remains

53.

Which expression matches the picture of 3 bricks plus 2 bricks?

a)

5 + 1

b)

3 + 1

c)

3 + 2

d)

2 + 4

54.

A builder has 3 small blocks and gets 2 more. Which equation correctly shows the total?

a)

3 + 2 = 6

b)

3 + 2 = 5

c)

3 + 2 = 7

d)

3 + 2 = 4

55.

You have 8 bricks. You give 3 to a friend. Which equation shows how many you keep?

a)

8 − 3 = 7

b)

8 − 3 = 6

c)

8 − 3 = 5

d)

8 − 3 = 4

56.

Choose the number sentence that makes the picture true: three-brick stack plus two-brick stack equals a stack of how many bricks?

a)

3 + 2 = 5

b)

3 + 2 = 3

c)

3 + 2 = 4

d)

3 + 2 = 6

57.

A stack shows 3 bricks. Another shows 2 bricks. If one brick from the second stack breaks, what is the new total?

a)

5 bricks total

b)

6 bricks total

c)

4 bricks total

d)

3 bricks total

58.

Which choice correctly compares the sums: 3 + 2 and 4 + 1?

a)

Comparison cannot be made

b)

They are equal

c)

4 + 1 is greater

d)

3 + 2 is greater

59.

You plan to build a tower with 5 bricks. You already placed 3. How many more bricks do you need?

a)

3 more bricks

b)

1 more brick

c)

4 more bricks

d)

2 more bricks

60.

Which equation shows a way to make 5 using addition?

a)

2 + 2

b)

2 + 1

c)

1 + 1

d)

3 + 2

61.

Look at the blocks. If you start with 3 blocks and add 1 more block, how many blocks do you have in total?

a)

3 blocks total

b)

4 blocks total

c)

5 blocks total

d)

6 blocks total

62.

Which number sentence matches the picture of 3 blocks joining with 1 block to make a taller stack?

a)

3 − 1 = 2

b)

3 + 1 = 4

c)

4 − 1 = 3

d)

2 + 2 = 5

63.

You have 4 building blocks. If you take away 1 block, how many remain?

a)

4 blocks remain

b)

1 block remains

c)

2 blocks remain

d)

3 blocks remain

64.

Which expression shows how to make 4 starting from 3 using addition?

a)

3 + 0

b)

3 + 1

c)

3 + 3

d)

3 + 2

65.

True or false: Adding 1 to any number makes the next counting number.

a)

True statement

b)

False statement

c)

Only for numbers under ten

d)

Only for even numbers

66.

Which model best represents 4 as a sum of two whole numbers using the blocks shown?

a)

2 blocks + 1 block

b)

3 blocks + 1 block

c)

4 blocks + 0 blocks

d)

5 blocks − 1 block

67.

If you build a stack of 3 blocks and then plan to have 4 blocks, how many more blocks do you need?

a)

You need 2 more blocks

b)

You need 0 more blocks

c)

You need 3 more blocks

d)

You need 1 more block

68.

Which equation shows the inverse relationship of the picture that adds to make 4?

a)

4 − 1 = 3

b)

4 − 3 = 0

c)

1 − 3 = 4

d)

3 − 1 = 4

69.

A tower has 4 blocks. If 3 blocks are orange and 1 block is added later, what was the total after adding?

a)

Total became 5 blocks

b)

Total became 4 blocks

c)

Total became 6 blocks

d)

Total became 3 blocks

70.

Which statement explains why 3 + 1 equals 4 using counting-on?

a)

Start at one and count up three to get five

b)

Start at four and count up one to get five

c)

Start at three and count up one to get four

d)

Start at three and count back one to get four

71.

Look at the blocks. If a stack shows 3 blocks and you remove 2 blocks, how many blocks remain?

a)

2 blocks remain

b)

3 blocks remain

c)

1 block remains

d)

0 blocks remain

72.

Which subtraction sentence matches the picture of a 3-block stack and a 2-block stack being taken away?

a)

3 − 3 = 2

b)

2 − 1 = 1

c)

2 − 3 = 1

d)

3 − 2 = 1

73.

If you start with 3 toy bricks and give 2 to a friend, how many toy bricks do you still have?

a)

3 bricks left

b)

2 bricks left

c)

1 brick left

d)

0 bricks left

74.

Choose the equation that makes the statement true: Three minus two equals ___.

a)

4

b)

2

c)

1

d)

0

75.

Which number is the difference in the subtraction 3 − 2?

a)

The number 2

b)

The number 1

c)

The number 3

d)

The number 5

76.

A student says, “3 − 2 = 0 because taking away two removes all the blocks.” What is the correct explanation?

a)

Wrong: one block remains after removing two

b)

Right: zero because two equals three

c)

Wrong: subtraction always makes numbers larger

d)

Right: zero because subtraction always gives zero

77.

If you add back the 2 blocks that were removed from 3, what total do you get?

a)

5 blocks total

b)

4 blocks total

c)

1 block total

d)

3 blocks total

78.

Which number sentence shows checking subtraction with addition for 3 − 2?

a)

1 + 2 = 3

b)

2 + 1 = 4

c)

1 + 3 = 2

d)

2 + 2 = 3

79.

You have 3 apples. You eat 2 apples. Which model best represents what is left?

a)

One apple remains

b)

Four apples remain

c)

Two apples remain

d)

No apples remain

80.

Which statement is true about the operation shown with the blocks?

a)

It is multiplication of equal groups

b)

It is division into equal parts

c)

It is addition because blocks are combined

d)

It is subtraction because blocks are taken away

81.

The picture shows three orange blocks minus two orange blocks equals one green block. What is 3 − 2?

a)

1

b)

3

c)

0

d)

2

82.

Which equation matches the blocks shown: a stack of 3 reduced to a stack of 2 leaving a single block?

a)

3 + 2 = 5

b)

3 − 2 = 1

c)

2 − 3 = −1

d)

2 + 1 = 4

83.

If you start with 3 bricks and remove 2 bricks, how many bricks remain?

a)

3 bricks

b)

2 bricks

c)

4 bricks

d)

1 brick

84.

Which number sentence shows taking away?

a)

3 ÷ 2 = 1

b)

3 × 2 = 6

c)

3 + 2 = 5

d)

3 − 2 = 1

85.

A tower has three blocks. You remove two blocks from the tower. Choose the correct result.

a)

The tower has four blocks

b)

The tower has two blocks

c)

The tower has zero blocks

d)

The tower has one block

86.

Which step-by-step plan correctly solves 3 − 2?

a)

Take away two from three

b)

Count up two from three

c)

Add two to three

d)

Double three then subtract one

87.

You have 3 cubes. You give 2 cubes to a friend. How many cubes do you keep?

a)

2 cubes

b)

1 cube

c)

3 cubes

d)

0 cubes

88.

Which statement is true about the model shown?

a)

Three times two equals one

b)

Three minus two equals one

c)

Three plus two equals one

d)

Two minus three equals one

89.

What operation is represented when the quantity decreases from 3 blocks to 2 blocks?

a)

Subtraction

b)

Addition

c)

Multiplication

d)

Division

90.

To check 3 − 2 = 1, which related addition fact is correct?

a)

1 + 3 = 2

b)

2 + 3 = 1

c)

0 + 2 = 3

d)

1 + 2 = 3

91.

Look at the blocks. If a stack has 4 blocks and you remove 1 block, how many blocks remain?

a)

5 blocks remain

b)

1 block remains

c)

2 blocks remain

d)

3 blocks remain

92.

What is 6 − 2?

a)

2

b)

3

c)

4

d)

5

93.

What is 7 + 3?

a)

11

b)

10

c)

9

d)

8

94.

Which equation shows taking away?

a)

2 ÷ 1

b)

3 × 3

c)

9 − 4

d)

5 + 2

95.

A toy car set has 10 cars. You give 3 to a friend. How many cars do you still have?

a)

7 cars left

b)

8 cars left

c)

9 cars left

d)

6 cars left

96.

Choose the sum that equals 12.

a)

9 + 3

b)

8 + 3

c)

7 + 4

d)

5 + 6

97.

Which pair makes 10?

a)

8 and 1

b)

7 and 2

c)

4 and 5

d)

6 and 3

98.

A stack shows 4 blocks. If you add 2 more blocks, how many blocks are there in all?

a)

7 blocks total

b)

6 blocks total

c)

5 blocks total

d)

8 blocks total

99.

What number makes this true: 9 − □ = 6?

a)

2

b)

5

c)

3

d)

4

100.

You solve 15 − 9. Which strategy is best?

a)

Count up from 9 to 15

b)

Multiply 9 by 2

c)

Skip-count by 5s from 0

d)

Add 9 and 15

101.

The picture shows four orange blocks minus one orange block equals three green blocks. What is 4 − 1?

a)

3

b)

2

c)

1

d)

4

102.

Which equation matches the blocks: a stack of 4 blocks, remove 1 block, equals a stack of 3 blocks?

a)

1 + 3 = 5

b)

3 − 1 = 4

c)

4 + 1 = 3

d)

4 − 1 = 3

103.

If you start with 4 bricks and give 1 to a friend, how many bricks do you keep?

a)

2 bricks

b)

5 bricks

c)

1 brick

d)

3 bricks

104.

Which number sentence shows taking away one from four?

a)

4 − 1

b)

1 − 4

c)

3 + 1

d)

4 + 1

105.

A tower has 4 blocks. You remove the top block. How many blocks are left in the tower?

a)

4 blocks left

b)

3 blocks left

c)

1 block left

d)

2 blocks left

106.

Which model could also show 4 − 1 = 3?

a)

One apple, add three, four remain

b)

Three apples, add one, four remain

c)

Four apples, add one, five remain

d)

Four apples, eat one, three remain

107.

Choose the expression that is equivalent to taking away one from a set of four.

a)

Split into halves

b)

Increase by one

c)

Decrease by one

d)

Double the set

108.

You see 4 blocks. One block rolls away. Which statement is true?

a)

There are 5 blocks left

b)

There are 4 blocks left

c)

There are 3 blocks left

d)

There are 2 blocks left

109.

A student says 4 − 1 equals 2. What mistake did the student make?

a)

Forgot the equal sign

b)

Counted all blocks twice

c)

Subtracted two instead of one

d)

Added instead of subtracted

110.

If 4 − 1 = 3, which of these must also be true?

a)

4 + 1 = 3

b)

3 + 1 = 4

c)

3 − 1 = 4

d)

1 + 4 = 6

111.

What is 5 − 3?

a)

1

b)

2

c)

3

d)

4

112.

Add: 7 + 6

a)

14

b)

11

c)

12

d)

13

113.

Subtract: 14 − 9

a)

3

b)

6

c)

4

d)

5

114.

Which equation shows making a ten to add 8 + 7?

a)

8 + 7 = 7 + 7

b)

8 + 7 = 9 + 6

c)

8 + 7 = 8 + 1 + 6

d)

8 + 7 = 10 + 7

115.

A pencil costs 6 cents and an eraser costs 5 cents. How much for both?

a)

11 cents

b)

10 cents

c)

12 cents

d)

9 cents

116.

Mia had 12 marbles and gave 5 away. How many left?

a)

6 marbles

b)

7 marbles

c)

8 marbles

d)

9 marbles

117.

Which subtraction shows counting up from the smaller number?

a)

12 − 8: add 12 and 8

b)

12 − 8: count down 12→8 by 6

c)

12 − 8: double 8 to 16

d)

12 − 8: count up 8→12 by 4

118.

A number plus 0 stays the same. Which is true?

a)

9 + 0 = 9

b)

9 + 0 = 10

c)

9 + 0 = 8

d)

9 + 0 = 90

119.

Find the missing number: 15 − ? = 7

a)

7

b)

8

c)

9

d)

10

120.

Which shows the inverse relationship of addition and subtraction?

a)

7 + 5 = 12 and 12 + 5 = 7

b)

7 + 5 = 12 and 12 − 5 = 7

c)

7 − 5 = 12 and 12 − 7 = 5

d)

7 + 12 = 5 and 5 − 7 = 12

121.

The picture shows 5 blocks minus 3 blocks equals how many blocks?

a)

1 block

b)

4 blocks

c)

2 blocks

d)

3 blocks

122.

Which expression matches the model with a tall stack of 5 blocks and removing 3 blocks?

a)

5 − 3 = 2

b)

5 + 3 = 8

c)

3 − 5 = −2

d)

5 × 3 = 15

123.

If you start with 5 toy bricks and give away 3, how many are left?

a)

4 bricks

b)

1 brick

c)

3 bricks

d)

2 bricks

124.

Which number sentence shows a subtraction result of 2?

a)

3 + 2 = 5

b)

5 − 3 = 2

c)

2 + 2 = 4

d)

6 − 5 = 0

125.

Fill in the blank to make the statement true: 5 − __ = 2

a)

4

b)

3

c)

2

d)

1

126.

Which picture best represents subtraction?

a)

Taking blocks away from a stack

b)

Lining blocks in a row

c)

Adding blocks to a stack

d)

Sorting blocks by color

127.

Choose the expression that has the same difference as 5 − 3

a)

7 − 4

b)

6 − 5

c)

4 − 2

d)

3 − 1

128.

If you remove 3 blocks from a stack of 5 twice, how many blocks did you remove in total?

a)

8 blocks

b)

5 blocks

c)

6 blocks

d)

3 blocks

129.

You have 5 apples. After eating 3, you buy 4 more. How many apples do you have now?

a)

5 apples

b)

6 apples

c)

7 apples

d)

8 apples

130.

Which statement is true about 5, 3, and 2 in the model?

a)

5 is the minuend

b)

3 is the minuend

c)

5 is the difference

d)

2 is the subtrahend

131.

What is 348 + 127?

a)

485

b)

475

c)

465

d)

495

132.

Solve: 902 − 586

a)

316

b)

326

c)

336

d)

346

133.

Which sum equals 1,000?

a)

642 + 358

b)

425 + 575

c)

701 + 309

d)

512 + 488

134.

Mia has 265 stickers. She gives away 89. How many stickers remain?

a)

166

b)

176

c)

186

d)

196

135.

A book costs 37andapencosts37 and a pen costs 9. What is the total cost?

a)

$47

b)

$46

c)

$45

d)

$44

136.

Choose the equation that shows regrouping in subtraction.

a)

503 − 241

b)

640 − 120

c)

950 − 300

d)

820 − 600

137.

A bus has 48 seats. 29 seats are filled. How many seats are empty?

a)

17 seats

b)

20 seats

c)

18 seats

d)

19 seats

138.

Which is the best estimate for 387 + 614?

a)

1,000

b)

900

c)

1,200

d)

700

139.

Leah walks 2,345 steps on Monday and 1,978 steps on Tuesday. How many more steps on Monday than Tuesday?

a)

357 steps

b)

267 steps

c)

367 steps

d)

377 steps

140.

Fill in the missing number: 1,000 − ___ = 425

a)

585

b)

575

c)

475

d)

675

141.

If you have 6 apples and give away 2, how many apples do you have left?

a)

4 apples

b)

3 apples

c)

2 apples

d)

5 apples

142.

What is the result of adding 8 and 7?

a)

16

b)

13

c)

15

d)

14

143.

Which number completes the equation: 10 − __ = 6?

a)

2

b)

4

c)

3

d)

5