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Worksheets

Midterm Revision Grade 5

Total questions: 222

Worksheet time: 6hrs 15mins

Name
Class
Date
1.

Which of the following is a factor of 12? Select all that apply.

a)

12

b)

2

c)

24

d)

3

2.

Select all of the multiples of 8.

a)

2

b)

8

c)

32

d)

4

3.

Select all of the prime numbers.

a)

3

b)

9

c)

29

d)

2

4.

Select all of the square numbers.

a)

9

b)

16

c)

24

d)

100

5.

Select all of the composite numbers.

a)

12

b)

16

c)

3

d)

7

6.

What are the factors of 15?

a)

1, 2, 3, 5, 15

b)

1, 3, 5, 15

c)

1, 2, 3, 4, 5

d)

1, 5, 10, 15

7.

What are the factors of 24?

a)

1, 2, 3, 4, 5, 6, 7, 8, 24

b)

1, 3, 4, 6, 8, 10, 24

c)

1, 2, 3, 4, 6, 8, 12, 24

d)

1, 2, 4, 8, 12, 24

8.

What are the first five multiples of 3?

a)

6, 9, 15, 18, 21

b)

3, 6, 9, 12, 18

c)

3, 6, 9, 15, 18

d)

3, 6, 9, 12, 15

9.

Which one of the numbers below is prime numbers?

a)

15

b)

17

c)

16

d)

12

10.

What are the first six multiples of 7?

a)

14, 35, 21, 28, 42

b)

7, 28, 42, 35, 63

c)

7, 14, 28, 35, 42, 56

d)

7, 14, 21, 28, 35, 42

11.

Which number is neither a prime nor a composite number ?

a)

1

b)

3

c)

5

d)

7

12.
A prime number is...
a)
a number that has only one factor.
b)
a number that has at least two factors.
c)
a number that has more than two factors.
d)
a number that has only two factors.
(1 and itself)
13.
Composite numbers:
a)
Are always bigger than prime numbers
b)
Have more than 2 factors
c)
Have 2 pairs of factors
d)
Don't have factors
14.
List the first 5 multiples of 8
a)
1, 2, 4, 8
b)
8, 16, 25, 32, 40
c)
8, 16, 24, 32, 40
d)
8, 16, 24, 31, 40
15.
Which number is prime?
a)
25
b)
11
c)
36
d)
14
16.
Which number is composite?
a)
17
b)
7
c)
5
d)
20
17.
Which number is NOT a multiple of 3?
a)
12
b)
33
c)
14
d)
21
18.
Which number is NOT a factor for 30?
a)
15
b)
2
c)
5
d)
7
19.
Which are the factors of both 6 and 15?
a)
9
b)
5
c)
6
d)
3
20.

TRUE or FALSE?


A FACTOR is greater than the number you are factoring

a)

TRUE

b)

FALSE

21.

1, 2, 3 and 6 are factors of 6.

a)

True

b)

False

22.

62 is a multiple of 8.

a)

True

b)

False

23.

The factors of 15 are...

a)

1,6,9

b)

1,8,12

c)

1,5,15,3

d)

15,30,48

24.

Seven is a factor of ...

a)

14, 27, and 72

b)

21, 28, and 42

c)

1, 7, and 14

d)

37, 47, and 57

25.

The factors of 35 include ...

a)

1,3,5,35

b)

5,15,20,35

c)

1,5,7,35

d)

1,2,4,7,35

26.

The missing number in this sequence 4, 7, __ , 13 is...

a)

6

b)

8

c)

10

d)

11

27.

What is the missing number in this sequence?

0, 6, 12, 18, ___, 30

a)

22

b)

28

c)

26

d)

24

28.

The next number in this sequence 0, 13, 26 39, __ is...

a)

52

b)

53

c)

54

d)

55

29.

What is the next pattern?

a)
b)
c)
30.

What is the next pattern in the sequence?

a)
b)
c)
31.

1, 2, 3 and 6 are factors of 6.

a)

True

b)

False

32.

Seven is a factor of ...

a)

14, 27, and 72

b)

21, 28, and 42

c)

1, 7, and 14

d)

37, 47, and 57

33.

List the first (4) multiples of 8

a)

1, 2, 4, 8

b)

8, 16, 24, 32

34.

Find ALL FACTORS of 24

a)

1, 2, 12, 24

b)

1, 2, 8, 24

c)

1, 2, 3, 4, 5, 6, 8, 12, 24

d)

1, 2, 3, 4, 6, 8, 12, 24

35.
Joe has listed the first 4 multiples of 7 as: 
7   14    22     28
Which one is incorrect?
a)
7
b)
14
c)
22
d)
28
36.
Which number is a factor of 48?
a)
6
b)
18
c)
7
d)
9
37.

Which of the following are multiples of 6?

a)

2, 4, 6

b)

1, 2, 3, 6

c)

6, 12, 18, 24

d)

6, 12, 24, 48

38.

Which of the following shows the multiples of 12?

a)

12, 22, 53, 60

b)

4, 8, 12, 16, 24

c)

12, 24, 36, 48, 60

39.

Identify a factor of 32

a)

3

b)

4

c)

5

d)

6

40.

Identify a factor of 44

a)

11

b)

10

c)

9

d)

12

41.

Which value is not a factor of 12...

a)

1

b)

2

c)

4

d)

5

42.

List the first (4) multiples of 8

a)

1, 2, 4, 8

b)

8, 16, 24, 32

43.

Which are factors of 20?

a)

2,10,5,4,1,20

b)

3,5,7,9

c)

40,80,100

d)

15,25,35

44.

Which number is square of 5?

a)
16
b)
29
c)

25

d)
32
45.

What are the common factors of 24 and 36?

a)

1, 2, 3, 4, 6, 12

b)

1, 3, 4, 6

c)

2, 4, 12

d)

1, 2, 3, 4, 5, 12

46.
Which are the factors of 14?
a)
1,14
b)
1, 2, 7, 14
c)
2, 7
47.
Which are the factors of 24?
a)
1, 2, 3, 8, 12, 24
b)
2, 3, 4, 6, 8, 12
c)
1, 2, 3, 4, 6, 8, 12, 24
48.

5 x 5 =

(a)  

49.

2 x 2 =

(a)  

50.

10 x 10 =

(a)  

51.

7 x 7

(a)  

52.

8 x 8

(a)  

53.

3 x 3 =

(a)  

54.

1 x 1 =

(a)  

55.

3 x 3 =

(a)  

56.

0 x 0 =

(a)  

57.

11 x 11 =

(a)  

58.

6 x 6 =

(a)  

59.

4 x 4 =

(a)  

60.

12 x 12 =

(a)  

61.

What is a square number?

a)

Square numbers are 1, 10, 100, 1000 and so on...

b)

Square numbers are numbers that look like squares.

c)

Square numbers are numbers that are the digits in a date multiplied.

d)

Square numbers are numbers that are a product of a number multiplied by itself.

62.

Which one of these is not a square number?

a)

64

b)

16

c)

20

d)

100

63.

What is the square number after 36?

a)

64

b)

81

c)

45

d)

49

64.

Complete the sequence: 1, 4, 9, 16, 25

a)

36, 49, 69, 81, 100

b)

36, 49, 100, 121

c)

36, 46, 81, 100

d)

36, 49, 64, 81

65.

9 x 9 =

(a)  

66.

4 x 4 =

(a)  

67.

8 x 8 =

(a)  

68.

1 x 1 =

(a)  

69.

11 x 11 =

(a)  

70.

10 x 10 =

(a)  

71.

6 x 6 =

(a)  

72.

2 x 2 =

(a)  

73.

5 x 5 =

(a)  

74.

7 x 7 =

(a)  

75.

A square rug has an area of 64. What are the dimensions?

a)

6 X 6

b)

7 X 7

c)

8 X 8

d)

9 X 9

76.

What is 5 cubed?

53

a)

125

b)

25

c)

15

d)

625

77.

y3=125y^3=125  
Find the value of y

a)

5

b)

15

c)

20

d)

25

78.

8×8×8=(23)×(23)×(23)8\times8\times8=\left(2^3\right)\times\left(2^3\right)\times\left(2^3\right)  

a)

TRUE

b)

FALSE

79.

123=12^3=  

a)

36

b)

144

c)

1728

80.

10×10×10=10x10\times10\times10=10^x  
Find the value of x

a)

3

b)

10

81.
If a number ends in 3, its cube ends in ______
a)
3
b)
9
c)
7
d)
1
82.

Which number is both a perfect square and a perfect cube?

a)

64

b)

27

c)

81

d)

16

83.

The number 512 is a perfect cube because 512 = 83.

Which number below is also a perfect cube?

a)

125

b)

300

c)

150

d)

256

84.
Evaluate. 73
a)
313
b)
323
c)
333
d)
343
85.

What is 15³ ?

(a)  

86.

What is 3 cubed?

a)

9

b)

27

c)

6

d)

81

87.

What is the value of 43 ?

a)

12

b)

81

c)

64

d)

16

88.

1 is equal to the cube of what number?

a)

-1

b)

0

c)

2

d)

1

89.

If 343 is equal to x3 , what is the value of x ?

a)

5

b)

6

c)

7

d)

8

90.

What is the value of 2 cubed ?

a)

8

b)

6

c)

16

d)

32

91.

103 = _____

a)

10

b)

1

c)

100

d)

1000

92.

216 is the cube of what number ?

a)

3

b)

4

c)

5

d)

6

93.

What is the value of 53 ?

a)

125

b)

15

c)

243

d)

25

94.

729 is the cube of what number ?

a)

6

b)

27

c)

9

d)

8

95.

If x3 = 512 , what is the value of x ?

a)

6

b)

9

c)

7

d)

8

96.

(2 + 3)2 − 22 + 72

a)

70

b)

18

c)

21

d)

20

e)

12

97.

729 + 33 − 23

a)

28

b)

73

c)

12

d)

75

e)

10

98.

(∛216 + 32) x ∛1331

a)

165

b)

132

c)

12

d)

15

e)

105

99.

72 x ∛343 − 82

a)

279

b)

82

c)

586

d)

34

e)

327

100.

(123 ÷ 43 − 33 ) × ∛512

a)

0

b)

48

c)

1 080

d)

1 104

e)

8

101.

93 − 53 × ∛64

a)

2 416

b)

16

c)

229

d)

271

e)

48

102.

132 − 73 ÷ √49

a)

120

b)

25

c)

None of the answer

d)

6

e)

5

103.

16=?\sqrt{16}=?  

a)

8

b)

2

c)

4

d)

32

104.

92=189^2=18  True or false?

a)

True

b)

False

105.

383_{\sqrt{8}}    (cube root of 8) 

a)

2

b)

±2\pm2  

c)

-2

d)

None of the above 

106.

(6)2\left(-6\right)^2  = ?

a)

12

b)

-12

c)

-36

d)

36

107.

Select the set with all perfect squares.

a)

-144, 9, 50, 75, 81, 100

b)

9, 50, 81, 100

c)

9, 50, 75, 81, 100

d)

9, 81, 100

108.
the square root √-25 is..
a)
5
b)
-5
c)
8
d)
none of the above
109.
√40 is between
a)
8 and 9
b)
7 and 8
c)
5 and 6
d)
6 and 7
110.

200

a)

is a perfect square

b)

is not a perfect square

111.

Mrs. Hiltz and Ms. Weber decide to host a lemonade stand. The table they use has side lengths of 5 feet. What is the area of their table?

a)

25 feet

b)

25 square inches

c)

5 ft2

d)

25 square feet

112.

Which of the following in NOT a perfect square?

a)

49

b)

81

c)

111

d)

144

113.
Evaluate. 73
a)
313
b)
323
c)
333
d)
343
114.
CHALLENGE.
a)
3
b)
62
c)
6
d)
2
115.
∛125
a)
5
b)
4
c)
6
d)
7
116.

Find the cube root of 729:

a)

9

b)

81

c)

243

117.

383_{\sqrt{8}}    (cube root of 8) 

a)

2

b)

±2\pm2  

c)

-2

d)

None of the above 

118.

What number, n, cubed is equal to 64?

n3 = 64

a)

4

b)

2

c)

8

d)

262,144

119.

Solve the following.

x2=25

a)

x=12.5

b)

x=50

c)

x=±5

d)

x=25

120.

Solve the following.

x3=512

a)

x=8

b)

x=256

c)

x=170

d)

x=1536

121.

x3=-27

a)

x=3

b)

x=27

c)

x=-3

d)

x=54

122.

x2=-64

a)

x=±8

b)

x=-8

c)

x=8

d)

Cannot be done

123.
Which of the following is 4.5 when rounded to the nearest tenth?
a)
4.34
b)
4.44
c)
4.52
d)
4.61
124.
Which of the following is true?
a)
1.72 rounded to the nearest tenth is 1.7
b)
2.62 rounded to the nearest tenth is 2.7
c)
3.41 rounded to the nearest whole number is 4
d)
10.231 rounded to the nearest hundredth is 10.22
125.
Which of the following is 12 when rounded to the nearest whole number?
a)
11.23
b)
11.56
c)
12.51
d)
12.64
126.
Round the decimal 5.67 to the nearest tenth place.
a)
5.5
b)
5.6
c)
5.7
d)
5.8
127.
Round the decimal 3.257 to the nearest hundredth place.
a)
3
b)
3.24
c)
3.25
d)
3.26
128.

If a number was rounded to 35.7 what could have been the original number.

a)

35.68

b)

36.75

c)

35.782

d)

35.614

129.

Tyerra's weight at birth was 8.328 pounds. What is Tyerra's birth weight rounded to the nearest hundredth?

a)

8.32 pounds

b)

8 pounds

c)

8.33 pounds

d)

8.3 pounds

130.

Lillie's mom fills her car with 14.297 gallons of gas. What is this amount of gas rounded to the nearest whole number?

a)

14

b)

15

c)

14.3

d)

14.2

131.

One gallon is about 3.875 liters. What is this amount rounded to the nearest tenth?

a)

3.88

b)

4

c)

3.8

d)

3.9

132.

Round 47.941 to the nearest tenth.

a)

47.9

b)

48

c)

47.91

d)

48.1

133.
When rounded to the nearest whole number, which value will NOT round to 35?
a)
34.72
b)
34.156
c)
35.49
d)
35.16
134.

Check ALL that make 194.000 when rounded to the nearest whole number.

a)

194.526

b)

193.625

c)

193.972

d)

193.160

135.
Which decimal becomes 7.8 when rounded to the nearest tenth?
a)
7.81
b)
7.86
c)
7.90
d)
7.99
136.

A medicine dropper holds 0.923 mL of liquid. What is the amount rounded to the nearest hundreth?

a)

0.90 mL

b)

0.92 mL

c)

0.93 mL

d)

0.9230 mL

137.

Round 5.67 in 1 decimal place

(a)  

138.

Round 6.64 in 1 decimal place

(a)  

139.

Round 23.49 in 1 decimal place

(a)  

140.

Round 103.65 in 1 decimal place

(a)  

141.

Round 1.823 to the nearest whole number.

a)

1

b)

1.8

c)

2

d)

2.8

142.
Round 23.542 to the nearest tenth.
a)
23.5
b)
23.6
c)
23.54
d)
23
143.

13.08 + 7.456

a)

21.536

b)

20.536

c)

205.36

d)

19.536

144.

13.080 - 7.486

a)

5.594

b)

50.594

c)

6.594

145.

46.4 - 41.745

a)

4.745

b)

4.655

c)

3.655

146.

7.4 - 6.02

a)

1.38

b)

1.42

c)

13.42

147.

.567 + .12 + 3

a)

.690

b)

3.687

c)

3.677

148.

Lacy and Gerald gave their heights for a school survey. Lacy’s height is 51.25 inches. Gerald’s height is 46.65 inches. How many inches taller is Lacy than Gerald?

a)

15.6 inches

b)

15.4 inches

c)

5.4 inches

d)

4.6 inches

149.

Giselle weighed two different samples of chemicals in her science class. The first sample weighed 39.05 grams. The second weighed 56.7 grams. She then mixed the two chemicals together. What was the weight of the combined samples?

a)

17.65 grams

b)

44.72 grams

c)

85.85 grams

d)

95.75 grams

150.
7.9 - 3.47 =
a)
11.37
b)
4.43
c)
3.32
d)
4.37
151.
7.05 - 4.6 =
a)
2.45
b)
3.65
c)
11.65
d)
11.45
152.
94 - 4.8 =
a)
89.2
b)
5.4
c)
90.80
d)
98.8
153.
55.78 + 4.6 =
a)
60.28
b)
55.32
c)
56.44
d)
60.38
154.
94 - 4.8 =
a)
89.2
b)
5.4
c)
90.80
d)
98.8
155.
32.15 + 24.15 =
a)
8.0
b)
12.0
c)
56.30
d)
12.30
156.
21 + 4.09 =
a)
4.30
b)
6.19
c)
25.09
d)
16.91
157.
80.93 - 68 =
a)
12.93
b)
81.61
c)
148.93
d)
86.13
158.
Which digit is in the tenths place in the number 473.521?
a)
2
b)
5
c)
1
d)
7
159.
Which digit is in the thousandths place in the number 473.521?
a)
4
b)
5
c)
2
d)
1
160.
What is the standard form of Thirty-eight and seventy-two hundredths?
a)
38.72
b)
308.720
c)
3872
d)
308.27
161.
Which digit shows the tenths place value in 520.345?
a)
5
b)
4
c)
3
d)
2
162.
What is the place value name of the digit 6 in the number below?
247.167
a)
tenths
b)
tens
c)
hundredths
d)
hundreds
163.
What place is the seven in?
456.007
a)
thousandths
b)
tenths
c)
thousands
d)
hundredths
164.
Which digit is in the tenths place of the following number?
43.56
a)
4
b)
3
c)
5
d)
6
165.
What place is the digit 6 in the number, 3.46?
a)
ones place
b)
tenths place
c)
hundredths place
d)
hundreds place
166.
Write the decimal for twenty-three hundredths
a)
2.3
b)
0.23
c)
230
d)
0.230
167.
Write the decimal for six tenths
a)
0.06
b)
6
c)
60
d)
0.6
168.
What is this decimal in word form?
0.72
a)
seventy-two tenths
b)
seventy-two hundredths
c)
seventy-two thousandths
d)
seventy-two
169.
Which decimal number represents seven hundred ninety-two and five hundredths?
a)
792.500
b)
792.05
c)
792.005
d)
792,500
170.
Which number represents six and eighty-four thousandths in standard form?  
a)
684
b)
6.84
c)
68.40
d)
6.084
171.
What is the standard form of three and six hundred fourteen thousandths?  
a)
3.614
b)
3.0614
c)
.3614
d)
30.614
172.
9.03
Which number is in the tenths place?
a)
9
b)
0
c)
3
173.
Which digit shows the tenths place value in 520.345?
a)
5
b)
4
c)
3
d)
2
174.
Which is the correct word form for 23.205?
a)
twenty-three two hundred five
b)
twenty-three and twenty five hundredths
c)
twenty-three and two hundred five thousandths
d)
twenty-three and two hundred five thousands
175.
What is the standard form of Thirty-eight and seventy-two hundredths?
a)
38.72
b)
308.720
c)
3872
d)
308.27
176.
What is the standard form of three and six hundred fourteen thousandths?  
a)
3.614
b)
3.0614
c)
.3614
d)
30.614
177.
What is the place value of the 5 in the number 8.965
a)
Ones
b)
Tenths
c)
Thousands
d)
Thousandths
178.
What number comes next? 
18, 16, 14, 12, ______.
a)
14
b)
13
c)
10
d)
8
179.
For the sequence 2, 8, 32, 128, .... the 5th term will be
a)
128
b)
232
c)
412
d)
512
180.

Which number is missing in this pattern?

11, 15, 19, ___, 27, 31, 35

a)

24

b)

23

c)

22

d)

21

181.

The terms in the number sequence 3, 6, 12, 24, … are generated by:

a)
multiplying by 3 
b)
adding 3
c)
subtracting 3
d)
multiplying by 2
182.

The terms in the number sequence 5, 8, 11, 14, … are generated by:

a)
adding 2 to make a new term
b)
adding 3 to make a new term
c)
multiplying by 2 to make a new term
d)
multiplying by 3 to make a new term
183.
Which number is missing in this pattern? 
120, 115, 110, ___, 100, 95
a)
105
b)
115
c)
90
d)
I don't know
184.
Given the following tile pattern, how many tiles would be in the 5th shape?
a)
b = 8
b)
b = 11
c)
b = 7
d)
b = 9
185.

What is the next term in the given number sequence?

31, 33, 35, 37, _

(a)  

186.

Identify the next term of the following number sequence.

64, 81, 100, 121, _

(a)  

187.

Identify the next term of the following number sequence.

21, 34, 55, 89, 144, _

(a)  

188.

Describe the term-to-term rule.

a)

Add 2 to the previous term

b)

Subtract 2 from the previous term

c)

Add 4 to the previous term

d)

Multiply 2 to the previous term

189.

Describe the term-to-term rule.

a)

Add 4 to the previous term

b)

Add 3 to the previous term

c)

Subtract 3 from the previous term

d)

Subtract 4 from the previous term

190.

Describe the term-to-term rule.

a)

Multiply 8 to the previous term.

b)

Add 8 to the previous term.

c)

Add 6 to the previous term.

d)

Add 7 to the previous term.

191.

Describe the term-to-term rule.

a)

Times 7 to the previous term.

b)

Add 7 to the previous term.

c)

Subtract 7 from the previous term.

d)

Add 6 to the previous term.

192.

Describe the term-to-term rule

a)

Add 5 to the previous term.

b)

Multiply 0.5 to the previous term.

c)

Add 0.5 to the previous term.

d)

Add 1.5 to the previous term.

193.

Describe the term-to-term rule.

a)

Add 0.5 to the previous term.

b)

Multiply 2.5 to the previous term.

c)

Add 25 to the previous term.

d)

Add 2.5 to the previous term.

194.

Describe the term-to-term rule.

a)

Subtract 2 from the previous term.

b)

Add 2 to the previous term.

c)

Subtract 3 from the previous term.

d)

Add 3 to the previous term.

195.

Describe the term-to-term rule.

a)

Add 6 to the previous term.

b)

Subtract 3 from the previous term.

c)

Subtract 4 from the previous term.

d)

Add 4 to the previous term.

196.

Describe the term-to-term rule

a)

Subtract 12 from the previous term

b)

Subtract 14 from the previous term

c)

Add 12 to the previous term

d)

Subtract 16 from the previous term

197.

Describe the term-to-term rule

a)

Subtract 35 from the previous term

b)

Subtract 5 from the previous term

c)

Subtract 25 from the previous term

d)

Subtract 15 from the previous term

198.

68 ×\times  10

a)

680

b)

6 800

c)

68 000

d)

6.8

199.

579 ×\times  100 =

a)

5 790

b)

57 900

c)

579 000

d)

5.79

200.

2 803 ×\times  10 = ...

a)

280.3

b)

28 030

c)

280 300

d)

2 803 000

201.

30 ×\times  100 = ...

(a)  

202.

Multiply 823 ×\times  1 000

(a)  

203.

8 hundreds x 10

a)

810

b)

800

c)

8,000

d)

80

204.

2 300 x 10 000 =

a)

23 000 000

b)

230 000 000

c)

2 300

d)

20 300

205.

29 ×\times  ... = 2 900

What is the missing factor?

(a)  

206.

672 ×\times  ... = 672 000

What is the missing factor?

a)

10

b)

100

c)

1 000

d)

10 000

207.

(9 tens 3 ones) x 1,000

a)

93

b)

930

c)

9300

d)

93,000

208.
2.7 x 10
a)
270
b)
0.27
c)
27
d)
0.027
209.

17.5 x 1000

a)

1.75

b)

175

c)

17,500

d)

0.175

210.

103 × 12.110^{3\ }\times\ 12.1  

(a)  

211.

When multiplying by increasing powers of ten, which way does the decimal move?

Type Right or Left

(a)  

212.

When multiplying by ten, which way does the decimal move?

a)

Right

b)

Left

213.
7.129 × 100 = 
a)
712.9
b)
71.29
c)
0.7129
d)
0.07129
214.
156.34 x 10 = 
a)
1,563.4
b)
15,634
c)
15.634
215.
2.7 x 10
a)
270
b)
0.27
c)
27
d)
0.027
216.

0.085 x 100

a)

0.85

b)

8.5

c)

85

d)

850

217.

4.96 x 10

a)

49.6

b)

496

c)

.496

d)

4960

218.
89.73 ÷ 100
a)
897.3
b)
8,973
c)
8.973
d)
0.8973
219.

1976 ÷ 10 = ______

a)

1976.00

b)

197.6

c)

197600

d)

1.976

220.

Fill in the blank.

In dividing a whole number to 0.001, ________________.

a)

move three decimal places from the right most/end to the right.

b)

move three decimal places from the right most/end to the left.

221.

22.310\frac{22.3}{10}  

a)

223

b)

2230

c)

2.23

d)

0.223

222.

1.51000\frac{1.5}{1000}  

a)

0.0015

b)

0.015

c)

0.15

d)

1500