1. Decimals Year 4 (age 8-9) - Hundredths

3. 100 13 12 14 15 87 18 16 10 17 73 77 11 69 67 57 45 19 49 65 47 89 90 91 79 46 50 40 93 94 92 32 34 95 72 42 48 36 35 38 88 53 62 83 82 80 59 60 75 64 66 78 56 70 76 74 86 85 54 52 68 55 58 33 84 37 23 22 24 97 96 25 26 44 98 28 30 99 27 20 29 43 39 63 41 61 71 81 21 51 31 5 6 7 4 8 2 1 3 9
nine hundredths
eleven hundredths
thirteen hundredths
fourteen hundredths
eight hundredths
twelve hundredths
five hundredths
one hundredth
fifteen hundredths
seventy-eight hundredths
six hundredths
seven hundredths
ten hundredths
eighteen hundredths
seventeen hundredths
sixteen hundredths
nineteen hundredths
twenty hundredths
eighty-eight hundredths
four hundredths
two hundredths
three hundredths
ninety-seven hundredths
ninety-eight hundredths
ninety-six hundredths
eighty hundredths
eighty-six hundredths
seventy-two hundredths
seventy-one hundredths
eighty-four hundredths
eighty-five hundredths
ninety-nine hundredths
seventy-four hundredths
eighty-nine hundredths
eighty-three hundredths
seventy-six hundredths
seventy-five hundredths
one hundred hundredths
ninety-four hundredths
ninety-two hundredths
eighty-seven hundredths
eighty-one hundredths
ninety-one hundredths
eighty-two hundredths
ninety-five hundredths
ninety-three hundredths
ninety hundredths
fifty-two hundredths
thirty-five hundredths
thirty-six hundredths
thirty-eight hundredths
thirty-two hundredths
thirty-one hundredths
thirty-four hundredths
forty-one hundredths
forty-six hundredths
forty-five hundredths
forty hundredths
thirty-nine hundredths
forty-two hundredths
seventy-three hundredths
thirty-three hundredths
twenty-four hundredths
twenty-five hundredths
twenty-three hundredths
twenty-two hundredths
twenty-one hundredths
twenty-six hundredths
seventy-nine hundredths
twenty-eight hundredths
twenty-seven hundredths
thirty hundredths
twenty-nine hundredths
forty-three hundredths
thirty-seven hundredths
sixty-five hundredths
sixty-six hundredths
sixty hundredths
fifty-nine hundredths
sixty-two hundredths
sixty-three hundredths
sixty-four hundredths
sixty-eight hundredths
sixty-seven hundredths
forty-four hundredths
sixty-nine hundredths
sixty-one hundredths
seventy hundredths
fifty-three hundredths
fifty-four hundredths
forty-eight hundredths
forty-seven hundredths
fifty-six hundredths
forty-nine hundredths
fifty-one hundredths
fifty hundredths
fifty-five hundredths
fifty-seven hundredths
fifty-eight hundredths
seventy-seven hundredths
one whole
100 10 5 2 6 3 1 7 8 9 4
one whole
two tenths
four tenths
three tenths
one tenth
five tenths
six tenths
nine tenths
ten tenths
eight tenths
seven tenths 10

4. x10 6 60 ? = 10
100
x10

5. x10 9 90 ? = 10
100
x10

6. ÷10 50 5 ? =
100 10
÷10

7. ÷10 80 8 ? =
100 10
÷10

9. We get one tenth when we divide one by ten.
We can write one tenth as a decimal: 0.1
1 ÷ 10 = 0.1

10. We can write one hundredth as a decimal: 0.01
We get one hundredth when we divide one by a hundred.
We can write one hundredth as a decimal: 0.01
1 ÷ 100 = 0.01

11. We also get one hundredth when we divide one tenth by ten.
0.1 ÷ 10 = 0.01

12. Hundreds
Tens
Units
Tenths
Hundredths

14. 0.01
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.09
0.10
0.1
0.11
0.12
0.13
0.14
0.15
0.16
0.17
0.18
0.19
0.20
0.21
0.2
0.22
0.23
0.24
0.25
0.26
0.27
0.28
0.29
0.3
0.30
0.31
0.32
0.33
0.34
0.35
0.36
0.37
0.38
0.39
0.4
0.40
0.41
0.42
0.43
0.44
0.45
0.46
0.47
0.48
0.49
0.50
0.51
0.5
0.52
0.53
0.54
0.55
0.56
0.57
0.58
0.59
0.61
0.60
0.6
0.62
0.63
0.64
0.65
0.66
0.67
0.68
0.69
0.70
0.7
0.71
0.72
0.73
0.74
0.75
0.76
0.77
0.78
0.79
0.80
0.81
0.8
0.82
0.83
0.84
0.85
0.86
0.87
0.88
0.89
0.91
0.90
0.9
0.92
0.93
0.94
0.95
0.96
0.97
0.98
0.99 1
1.00
1.0

16. Which number is larger?
Tens
Units .
Tenths
Hundredths 7 . 7 6 7 . 7 3

17. Which number is larger?
Tens
Units .
Tenths
Hundredths 4 . 6 3 4 . 7 1

18. Which number is larger?
Tens
Units .
Tenths
Hundredths . 5 9 . 5 5

19. Which number is larger?
Tens
Units .
Tenths
Hundredths 5 . 9 5 . 7 5

20. Which number is larger?
Tens
Units .
Tenths
Hundredths 6 . 1 5 . 9 9

22. 0.3
0.4
0.5
0.32
0.39
0.42
0.48

23. 0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9 1
0.15
0.45
0.65
0.95

24. 0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9 1
0.18
0.42
0.58
0.96

26. 0.4 A 1
1.1 B
1.8 C 2

27. 0.3 A
0.7 B 1
1.4 C 2

28. 1.6
1.7
1.8
1.63
1.68
1.74
1.77

29. 2.8
2.9 3
2.84
2.89
2.94
2.97

30. 0.5 1
1.5 2
0.05
0.45
0.95
1.35

32. 0.62
0.63
0.64
0.65
0.66
0.67
0.68
0.69
0.7
0.71
Complete +10 number sequences

33. 0.06
0.16
0.26
0.36
0.46
0.56
0.66
0.76
0.86
0.96
Complete +10 number sequences

34. 0.97
0.98
0.99 1
1.01
1.02
1.03
1.04
1.05
1.06
Complete +10 number sequences

35. 0.79
0.89
0.99
1.09
1.19
1.29
1.39
1.49
1.59
1.69
Complete +10 number sequences

36. 2.48
2.49
2.5
2.51
2.52
2.53
2.54
2.55
2.56
2.57
Complete +10 number sequences

37. 2.76
2.86
2.96
3.06
3.16
3.26
3.36
3.46
3.56
3.66
Complete +10 number sequences

39. 0.13
0.12
0.11
0.1
0.09
0.08
0.07
0.06
0.05
0.04
Complete +10 number sequences

40. 1.02
1.01 1
0.99
0.98
0.97
0.96
0.95
0.94
0.93
Complete +10 number sequences

41. 1.01
0.91
0.81
0.71
0.61
0.51
0.41
0.31
0.21
0.11
Complete +10 number sequences

42. 3.35
3.25
3.15
3.05
2.95
2.85
2.75
2.65
2.55
2.45
Complete +10 number sequences

43. 4.94
4.93
4.92
4.91
4.9
4.89
4.88
4.87
4.86
4.85
Complete +10 number sequences

45. . 9 7 1 7 . Units Tenths Hundredths Round to the nearest whole number.
7.1
7.2
7.3
7.4
7.5
7.6
7.7
7.8
7.9 8

46. . 2 4 7 7 25 . Tens Units Tenths Hundredths
Round to the nearest whole number. .
Tens
Units
Tenths
Hundredths . 2 4 7 7 25 24
24.1
24.2
24.3
24.4
24.5
24.6
24.7
24.8
24.9 25

47. 8.83 m -> 9 m 9.19 m -> 9 m 26.28 m -> 26 m 14.94 m ->
Round these lengths to the nearest metre.
8.83 m ->
9 m
9.19 m ->
9 m
26.28 m ->
26 m
14.94 m ->
15 m

49. + 7 . 4 7 1

50. + 7 . 9 3 1

51. + 7 2 8 . 3 1 1 1

53. 5 1 - 5 . 7 3

54. - 5 . 4 4

55. 5 7 1 1 - 5 8 1 . 3 9

57. What we know about dividing by 100
When we divide by a hundred, we move two place values to the right.
700 ÷ 100 = 7
RECAP
What we know about dividing by 100
Hundreds
Tens
Units
Tenths
Hundredths
Remember that 7.00 = 7
Any number followed by .00 is just that number.
e.g is 9, is 28, is 253, etc.

58. 3 2 1 4 324 ÷ 100 = 3.24 Hundreds Tens Units Tenths Hundredths
When we divide by a hundred, we move two place values to the right.
324 ÷ 100 =
3.24
Hundreds
Tens
Units
Tenths
Hundredths 3
2 1 4

59. 2 0 1 9 209 ÷ 100 = 2.09 Hundreds Tens Units Tenths Hundredths
When we divide by a hundred, we move two place values to the right.
209 ÷ 100 =
2.09
Hundreds
Tens
Units
Tenths
Hundredths 2
0 1 9

60. 4 _ 40 ÷ 100 = 0.4 Hundreds Tens Units Tenths Hundredths
When we divide by a hundred, we move two place values to the right.
40 ÷ 100 =
0.4
Hundreds
Tens
Units
Tenths
Hundredths
4 _
If a place value column is empty, we can write a 0 in it.
We can ignore 0s in decimal place value columns if there are no numbers to the right.

61. 7 _ 70 ÷ 100 = 0.7 Hundreds Tens Units Tenths Hundredths
When we divide by a hundred, we move two place values to the right.
70 ÷ 100 =
0.7
Hundreds
Tens
Units
Tenths
Hundredths
7 _

62. 3 _ 6 36 ÷ 100 = 0.36 Hundreds Tens Units Tenths Hundredths
When we divide by a hundred, we move two place values to the right.
36 ÷ 100 =
0.36
Hundreds
Tens
Units
Tenths
Hundredths
3 _ 6

63. 2 1 1 21 ÷ 100 = 0.21 Hundreds Tens Units Tenths Hundredths
When we divide by a hundred, we move two place values to the right.
21 ÷ 100 =
0.21
Hundreds
Tens
Units
Tenths
Hundredths
2 1 1

64. 7 7 ÷ 100 = 0.07 Hundreds Tens Units Tenths Hundredths
When we divide by a hundred, we move two place values to the right.
7 ÷ 100 =
0.07
Hundreds
Tens
Units
Tenths
Hundredths 7

65. 7 ÷ 100 =
0.07

66. 4 4 ÷ 100 = 0.04 Hundreds Tens Units Tenths Hundredths
When we divide by a hundred, we move two place values to the right.
4 ÷ 100 =
0.04
Hundreds
Tens
Units
Tenths
Hundredths 4

67. 4 ÷ 100 =
0.04

69. What we know about multiplying by 10
When we multiply by ten, we move one place value to the left.
3 x 10 = 30
RECAP
What we know about multiplying by 10
Hundreds
Tens
Units
Tenths 3

70. What we know about multiplying by 10
When we multiply by ten, we move one place value to the left.
68 x 10 =
680
RECAP
What we know about multiplying by 10
Hundreds
Tens
Units
Tenths 6 8

71. 2 0.2 x 10 = 2 Hundreds Tens Units Tenths
When we multiply by ten, we move one place value to the left.
0.2 x 10 = 2
Hundreds
Tens
Units
Tenths 2

72. 0.2 x 10 = 2

73. 8 0.8 x 10 = 8 Hundreds Tens Units Tenths
When we multiply by ten, we move one place value to the left.
0.8 x 10 = 8
Hundreds
Tens
Units
Tenths 8

74. 0.8 x 10 = 8

75. 1 6 1.6 x 10 = 16 Hundreds Tens Units Tenths
When we multiply by ten, we move one place value to the left.
1.6 x 10 = 16
Hundreds
Tens
Units
Tenths 1 6

76. 6 1 60.1 x 10 = 601 Hundreds Tens Units Tenths
When we multiply by ten, we move one place value to the left.
60.1 x 10 =
601
Hundreds
Tens
Units
Tenths 6 1

77. 5 0.05 x 10 = 0.5 Hundreds Tens Units Tenths Hundredths
When we multiply by 10, we move one place value to the left.
0.05 x 10 =
0.5
Hundreds
Tens
Units
Tenths
Hundredths 5

78. 0.05 x 10 =
0.5

79. 9 0.09 x 10 = 0.9 Hundreds Tens Units Tenths Hundredths
When we multiply by 10, we move one place value to the left.
0.09 x 10 =
0.9
Hundreds
Tens
Units
Tenths
Hundredths 9

80. 0.09 x 10 =
0.9

81. 3 4 0.34 x 10 = 3.4 Hundreds Tens Units Tenths Hundredths
When we multiply by 10, we move one place value to the left.
0.34 x 10 =
3.4
Hundreds
Tens
Units
Tenths
Hundredths 3 4

82. 5 6 5.06 x 10 = 50.6 Hundreds Tens Units Tenths Hundredths
When we multiply by 10, we move one place value to the left.
5.06 x 10 =
50.6
Hundreds
Tens
Units
Tenths
Hundredths 5 6

84. What we know about multiplying by 100
When we multiply by 100, we move two place values to the left.
9 x 100 =
900
RECAP
What we know about multiplying by 100
Hundreds
Tens
Units
Tenths 9

85. 6 0.6 x 100 = 60 Hundreds Tens Units Tenths
When we multiply by 100, we move two place values to the left.
0.6 x 100 = 60
Hundreds
Tens
Units
Tenths 6

86. 7 0.7 x 100 = 70 Hundreds Tens Units Tenths
When we multiply by a hundred, we move two place values to the left.
0.7 x 100 = 70
Hundreds
Tens
Units
Tenths 7

87. 4 5 4.5 x 100 = 450 Hundreds Tens Units Tenths
When we multiply by a hundred, we move two place values to the left.
4.5 x 100 =
450
Hundreds
Tens
Units
Tenths 4 5

88. 8 9 8.9 x 100 = 890 Hundreds Tens Units Tenths
When we multiply by a hundred, we move two place values to the left.
8.9 x 100 =
890
Hundreds
Tens
Units
Tenths 8 9

89. 4 0.04 x 100 = 4 Hundreds Tens Units Tenths Hundredths
When we multiply by 100, we move two place values to the left.
0.04 x 100 = 4
Hundreds
Tens
Units
Tenths
Hundredths 4

90. 0.04 x 100 = 4

91. 2 0.02 x 100 = 2 Hundreds Tens Units Tenths Hundredths
When we multiply by 100, we move two place values to the left.
0.02 x 100 = 2
Hundreds
Tens
Units
Tenths
Hundredths 2

92. 8 1 0.81 x 100 = 81 Hundreds Tens Units Tenths Hundredths
When we multiply by 100, we move two place values to the left.
0.81 x 100 = 81
Hundreds
Tens
Units
Tenths
Hundredths 8 1