1. Decimals Year 5 (age 9-10)

3. . 2 . 4 4 2 . 4 Which number is larger? Tens Units Tenths Hundredths
Thousandths 2 . 4 4 2 . 4

4. . . 6 6 7 . 6 6 Which number is larger? Tens Units Tenths Hundredths
Thousandths . 6 6 7 . 6 6

5. . 1 . 7 3 1 . 9 6 Which number is larger? Tens Units Tenths Hundredths
Thousandths 1 . 7 3 1 . 9 6

6. . . 8 8 . 7 8 Which number is larger? Tens Units Tenths Hundredths
Thousandths . 8 8 . 7 8

7. . 1 . 1 1 . 2 9 Which number is larger? Tens Units Tenths Hundredths
Thousandths 1 . 1 1 . 2 9

8. . 5 . 5 4 . 4 Which number is larger? Tens Units Tenths Hundredths
Thousandths 5 . 5 4 . 4

10. Put these numbers into ascending order.
0.98
0.889
0.8
0.89
0.898
0.8
0.889
0.89
0.898
0.98

11. Put these numbers into ascending order.
5.5
5.45
4.45
5.405
5.504
4.45
5.405
5.45
5.5
5.504

13. . . 1 6 1 6 1.62 Round to the nearest hundredth. Tens Units Tenths
Hundredths
Thousandths . 1 6 1 6
1.62

14. . . 7 5 7 3 7.57 Round to the nearest hundredth. Tens Units Tenths
Hundredths
Thousandths . 7 5 7 3
7.57

15. . . 2 3 4 2 2 23.42 Round to the nearest hundredth. Tens Units Tenths
Hundredths
Thousandths . 2 3 4 2 2
23.42

16. . . 4 7 9 40.08 Round to the nearest hundredth. Tens Units Tenths
Hundredths
Thousandths . 4 7 9
40.08

18. . 2 4 . 7 7 2 20 24.8 25 24.77 Round 24.772 to the nearest: Ten:
Tens
Units
Tenths
Hundredths
Thousandths 2 4 . 7 7 2
Round to the nearest:
Ten: 20
Tenth:
24.8
Whole number: 25
Hundredth:
24.77

19. . 1 5 . 3 7 5 20 15.4 15 15.38 Round 15.375 to the nearest: Ten:
Tens
Units
Tenths
Hundredths
Thousandths 1 5 . 3 7 5
Round to the nearest:
Ten: 20
Tenth:
15.4
Whole number: 15
Hundredth:
15.38

21. Estimate by rounding to the nearest whole number.
25.93 x 5
9 x 35.21
47.15 ÷ 7
26 x 5
9 x 35
47 ÷ 7 = 6 r 5 3 4
2 6
x 5
3 5
x 9
73.93 ÷ 8
74 ÷ 8 = 9 r 2
1 3
3 1 5

23. =
72.83 + 7 2 . 8 3 1 1 1

24. =
7.605
5 . 6 + . 7 6 5

25. =
7.473 + . 7 4 7 3 1

26. =
7.938 + . 7 9 3 8 1

27. =
31.545 + 3 1 . 5 4 5 1

28. =
55.555
5 0 . + 5 5 . 5 5 5

30. =
2.843 5
3 . 4 1 - . 2 8 4 3

31. 6.78 – =
5.439 7 1 - . 5 4 3 9

32. 2.193 – 0.52 =
1.673 1 1 -
0 . 5 2 1 . 6 7 3

33. =
0.61 1 2 3 1
4 . 3 - . 6 1

34. =
1.42
. 0 0 1 3 - 1 . 4 2

35. =
1.303 1 4 - 1 . 3 3

37. 3.331
____ = 5.88 7 1 - . 3 3 3 1

38. 5.5 - ____ = 3.69
1.81 1 4 4 1
5 . 5 - 1 . 8 1

39. 7.618
____ = 5.568 + 7 . 6 1 8 1

41. 1.6
0.7
0.9
0.3
0.4
0.5 1
0.3
0.9
0.7 + - .4 .4 + .9 . 7 . 5 1 . 6

42. 3.19
1.1
2.09
0.37
0.73
1.36 1 1
1.1
2.0 9
1.1 1 1 - -
.7 3 +
.7 3 2
.0 9 . 3 7 1 . 3 6 3 . 1 9

43. 6.26
3.7
2.56
2.342
1.358
1.202 1 1 1 5
2.5 6
3.7 1 + - + 2
.5 6 3 . 7 . 1 2 2 6 . 2 6

45. 0.3
= 0.8
= 0.9
= 1.1
0.8
0.9
0.6
0.5
1.1

46. 0.8
= 1.2
1.3 – 0.5 = 0.8
= 1.5
1.5
1.3
0.7
1.2
0.5

47. 1.4
= 6.6
6.6 ÷ 2 = 3.3
3.3 – 1.9 = 1.4
2.3
2.4
3.3 – 2.3 = 1.0
3.3 – 2.4 = 0.9 1
0.9
1.9

48. 1.2
= 10
10 ÷ 2 = 5
5 – 3.8 = 1.2
3.3
2.9
5 – 3.3 = 1.7
5 – 2.9 = 2.1
2.1
3.8
1.7

50. = = = =
5 . 2

51. – 3 = =
– = =

53. 0.003 x 10 = 0.03 3 Thousands Hundreds Tens Units Tenths Hundredths
Thousandths 3

54. 0.068 x 10 = 0.68 6 8 Thousands Hundreds Tens Units Tenths Hundredths
Thousandths 6 8

55. 0.941 x 10 = 9.41 9 4 1 Thousands Hundreds Tens Units Tenths
Hundredths
Thousandths 9 4 1

56. 0.908 x 10 = 9.08 9 8 Thousands Hundreds Tens Units Tenths Hundredths
Thousandths 9 8

57. 0.009 x 100 = 0.9 9 Thousands Hundreds Tens Units Tenths Hundredths
Thousandths 9

58. 0.096 x 100 = 9.6 9 6 Thousands Hundreds Tens Units Tenths Hundredths
Thousandths 9 6

59. 0.433 x 100 = 43.3 4 3 3 Thousands Hundreds Tens Units Tenths
Hundredths
Thousandths 4 3 3

60. 0.708 x 100 = 70.8 7 8 Thousands Hundreds Tens Units Tenths Hundredths
Thousandths 7 8

61. 0.005 x 1000 = 5 5 Thousands Hundreds Tens Units Tenths Hundredths
Thousandths 5

62. 0.041 x 1000 = 41 4 1 Thousands Hundreds Tens Units Tenths Hundredths
Thousandths 4 1

63. 0.335 x 1000 = 3 3 5 335 Thousands Hundreds Tens Units Tenths
Hundredths
Thousandths 3 3 5

65. When we multiply by 1000, we move 3 place values to the left.
3 x 1000 =
3000 . 1 1 1
100,000s
10,000s
1,000s
100s
10s 1s s s s 10
100
1000 3

66. When we multiply by 1000, we move 3 place values to the left.
42 x 1000 =
42000 . 1 1 1
100,000s
10,000s
1,000s
100s
10s 1s s s s 10
100
1000 4 2

67. When we multiply by 1000, we move 3 place values to the left.
42.5 x 1000 =
42500 . 1 1 1
100,000s
10,000s
1,000s
100s
10s 1s s s s 10
100
1000 4 2 . 5

68. When we multiply by 1000, we move 3 place values to the left.
36.12 x 1000 =
36120 . 1 1 1
100,000s
10,000s
1,000s
100s
10s 1s s s s 10
100
1000 3 6 . 1 2

69. When we multiply by 1000, we move 3 place values to the left.
x 1000 =
40135 . 1 1 1
100,000s
10,000s
1,000s
100s
10s 1s s s s 10
100
1000 4 . 1 3 5

70. When we multiply by 1000, we move 3 place values to the left.
498.8 x 1000 =
498800 . 1 1 1
100,000s
10,000s
1,000s
100s
10s 1s s s s 10
100
1000 4 9 8 . 8

71. When we multiply by 1000, we move 3 place values to the left.
x 1000 =
673130 . 1 1 1
100,000s
10,000s
1,000s
100s
10s 1s s s s 10
100
1000 6 7 3 . 1 3

72. When we multiply by 1000, we move 3 place values to the left.
x 1000 =
851205 . 1 1 1
100,000s
10,000s
1,000s
100s
10s 1s s s s 10
100
1000 8 5 1 . 2 5

74. When we divide by 1000, we move 3 place values to the right.
4000 ÷ 1000 = 4 . 1 1 1
100,000s
10,000s
1,000s
100s
10s 1s s s s 10
100
1000 4 .

75. When we divide by 1000, we move 3 place values to the right.
3700 ÷ 1000 =
3.7 . 1 1 1
100,000s
10,000s
1,000s
100s
10s 1s s s s 10
100
1000 3 7 .

76. When we divide by 1000, we move 3 place values to the right.
8950 ÷ 1000 =
8.95 . 1 1 1
100,000s
10,000s
1,000s
100s
10s 1s s s s 10
100
1000 8 9 5 .

77. When we divide by 1000, we move 3 place values to the right.
2456 ÷ 1000 =
2.456 . 1 1 1
100,000s
10,000s
1,000s
100s
10s 1s s s s 10
100
1000 2 4 5 6 .

78. When we divide by 1000, we move 3 place values to the right.
45870 ÷ 1000 =
45.87 . 1 1 1
100,000s
10,000s
1,000s
100s
10s 1s s s s 10
100
1000 4 5 8 7 .

79. When we divide by 1000, we move 3 place values to the right.
÷ 1000 =
701.8 . 1 1 1
100,000s
10,000s
1,000s
100s
10s 1s s s s 10
100
1000 7 1 8 .

80. When we divide by 1000, we move 3 place values to the right.
÷ 1000 = . 1 1 1
100,000s
10,000s
1,000s
100s
10s 1s s s s 10
100
1000 9 8 4 7 2 1 .

82. 0.4 x 4 =
1.6

83. 0.2 x 7 =
1.4
If there is 1 decimal place in the multiplication, there will usually be 1 decimal place in the answer.
9 x 0.5 =
12 x 0.3 =
7 x 0.6 =
5 x 0.8 =
4.5
3.6
4.2 4
4.0

85. If there is 1 decimal place in the question, there will usually be 1 decimal place in the answer.
5.4 ÷ 6 =
0.9
4 ÷ 8 =
2 ÷ 5 =
3 ÷ 6 =
4.0 ÷ 8 =
2.0 ÷ 5 =
3.0 ÷ 6 =
0.5
2.1 ÷ 3 =
0.7
0.4
4.2 ÷ 7 =
0.6
0.5

87. If there is 1 decimal place in the answer, there will usually be 1 decimal place in the question.
0.6 5
___ x 8 = 4.8
___ x 0.7 = 3.5
0.8 7
___ x 2 = 1.6
___ x 0.4 = 2.8
0.6 4
___ x 9 = 5.4
___ x 0.5 = 2 .0

89. 73 x 7.4 =
540.2
43 x 8.6 =
369.8 2 2 1 1
7 4
x 7 3 .
8 6
x 4 3 . 1 . .
2 2 2
2 5 8 . .
5 1 8
3 4 4 . . 5 4 2 3 6 9 8

90. 94 x 18.6 =
1748.4
64.1 x 63 =
4038.3 7 5 2 3 2 1
6 4 1
x 6 3 .
1 8 6
x 9 4 . 1 1 1 . . 7 4 4
1 9 2 3 . .
1 6 7
3 8 4 4 6 . . 1 7 4 8 4 4 3 8 3

92. 0.03 x 7 =
0.21

93. If there are 2 decimal places in the multiplication, there will usually be 2 decimal places in the answer.
9 x 0.05 =
12 x 0.03 =
7 x 0.06 =
5 x 0.08 =
0.45
0.36
0.42
0.07 x 4 =
0.28
0.4
0.40

95. 45 x 7.55 =
339.75
42 x 4.99 =
209.58 2 2 3 3 2 2 1 1
7 5 5
x 4 5 .
4 9 9
x 4 2 . 1 1 1 . .
3 7 7 5 9 9 8 . .
3 0 2
1 9 9 6 . . 3 3 9 7 5 2 9 5 8

96. 45 x =
960.75
325.6 x 84 = 1 2 2 4 4 1 2 1 2 2 x . x . 1 1 . .
1 0 6 7 5
1 3 2 4 . . 8 5 4
2 6 4 8 . . 9 6 2 7 5 7 3 5 4