Practice Daily Test Chapter 11

Simplify

13 + (5 x 4) = ....

• 22

• 33

• 69

• 72

Solve.

4 + 2 x 7 = .....

• 4 + 2 x 7= 6 x 7

  = 42

• (2 x 7) + (7 x 2)

  = 14 + 14

  = 28

• 4 + (2 x 7)

  = 4 + 14

  = 18

• 4 + (4 x 7)

  = 4 + 28

  = 32

What would be my first step? 3 + 4 x 6 - 4 =

• Addition

• Multiplication

• Subtraction

• Division

What is the missing number?

3 x ____ - 2 = 16

• 4

• 6

• 24

• 7

Which one of the following illustrates the Commutative Law of addition?

• 5 +7 = 7 + 5

• 5 +7 = 3 + 9

• 5 + 7 = 4 + 8

• 5 +7 = 10 + 2

Which of the following illustrates the Commutative Law of multiplication?

• 6 x 3 x 4 = (6 x 3) x 4

• 3 x 4 x 2 = (3 x 2) x 6

• 5 x 10 x 3 = (5 x 10) x 3

• 5 x 12 x 2 = (5 x 2) x 12

Which one of the following illustrates the Associative Law of addition?

• 3 + 2 + 4 = (4 + 4) + 1

• 3 + 2 + 4 = (3 + 2) + 4

• 3 + 2 + 4 = (5 + 2) + 2

• 3 + 2 + 4 = (2 + 6) + 1

Which of the following illustrates the Associative Law of multiplcation ?

• 4 x 3 x 6 = (6 x 6) x 2

• 4 x 3 x 6 = (3 x 12) x 2

• 4 x 3 x 6 = (4 x 3) x 6

• 4 x 3 x 6 = (3 x 8) x 3

Use commutative law in addition.

35 + 178 + 65 = ...

• (35 + 178) + 65

  = 213 + 65

  = 818

• (35 + 65) + 178 = 100 + 178

  = 278

• (35 + 65) + 178 = 100 + 158

  = 258

• (35 + 65) + 178 = 100 + 168

  = 268

Use the commutative law in multiplication.

4 x 9 x 25 = ...

• 4 x 25 x 9 = 100 x 4

  = 400

• 4 x 25 x 7 = 100 x 7

  = 700

• 4 x 25 x 9 = 100 x 9

  = 900

• 4 x 9 x 25 = 36 x 25

  = 910