1. +/- Numbers Year 2-3 – Develop methods for addition and subtraction within 100

3. 34 =

4. 34 =

5. 34 =

6. 76 =

7. 76 =

8. 76 =

9. 76 =

10. 76 =

11. 76 =

12. 76 =

13. 82 =

14. 82 =

15. 82 =

16. 82 =

17. 82 =

18. 82 =

19. 82 =

20. 82 =

22. Round 23 to the nearest 10 20 21 22 23 24 25 26 27 28 29 30

23. Round 28 to the nearest 10 20 21 22 23 24 25 26 27 28 29 30

24. Round 41 to the nearest 10 40 41 42 43 44 45 46 47 48 49 50

25. Round 66 to the nearest 10 70 69 68 67 66 65 64 63 62 61 60

26. Round 55 to the nearest 10 60 59 58 57 56 55 54 53 52 51 50

27. Round 25 to the nearest 10 30 29 28 27 26 25 24 23 22 21 20

28. When rounding to the nearest ten:
If the units digit is 1, 2, 3 or 4, go BACK to the previous multiple of ten.
If the units digit is 5, 6, 7, 8 or 9, go ON to the next multiple of ten.

30. + 6 9 7 +2 +4 28 34 28 30 34 66 75

31. + 6 9 7 +2 +7 28 34 37 28 30 37 66 75

32. + 6 9 7 +2 +5 28 34 37 35 28 30 35 66 75

33. + 6 9 7 +4 +2 28 34 37 35 66 70 72 66 72 75

34. + 6 9 7 +4 +5 28 34 37 35 66 70 75 66 72 75 75

35. + 6 9 7 +4 +3 28 34 37 35 66 70 73 66 72 75 73 75

36. + 6 9 7 +5 +1 28 34 37 35 75 80 81 66 72 75 73 75 81

37. + 6 9 7 +5 +4 28 34 37 35 75 80 84 66 72 75 73 75 81 84

38. + 6 9 7 +5 +2 28 34 37 35 75 80 82 66 72 75 73 75 81 84 82

40. - 6 9 7 -1 -5 25 19 19 20 25 64 72

41. - 6 9 7 -4 -5 25 19 16 16 20 25 64 72

42. - 6 9 7 -2 -5 25 19 16 18 18 20 25 64 72

43. - 6 9 7 -2 -4 25 19 16 18 58 60 64 64 58 72

44. - 6 9 7 -5 -4 25 19 16 18 55 60 64 64 58 55 72

45. - 6 9 7 -3 -4 25 19 16 18 57 60 64 64 58 55 57 72

46. - 6 9 7 -4 -2 25 19 16 18 66 70 72 64 58 55 57 72 66

47. - 6 9 7 -7 -2 25 19 16 18 63 70 72 64 58 55 57 72 66 63

48. - 6 9 7 -5 -2 25 19 16 18 65 70 72 64 58 55 57 72 66 63 65

50. 8 4 – 4 3 = 4 1 +7
+10
+10
+10 +4 43 50 60 70 80 84 =
Adding by counting forwards on a number line = 41

51. 8 4 – 4 3 = 4 1 +7
+30 +4 43 50 80 84 =
Adding by counting forwards on a number line = 41

52. 7 1 – 5 6 = 1 5 +4
+10 +1 56 70 71 60 =
Adding by counting forwards on a number line = 15

53. 8 2 – 5 8 = 2 4 +2
+10
+10 +2 58 60 70 80 82
Adding by counting forwards on a number line = = 24

54. 8 2 – 5 8 = 2 4 +2
+20 +2 58 60 80 82
Adding by counting forwards on a number line = = 24

55. 7 0 – 3 8 = 3 2
+10
+10
+10 +2 38 40 50 60 70
Adding by counting forwards on a number line = = 32

56. 7 0 – 3 8 = 3 2
+30 +2 38 40 70
Adding by counting forwards on a number line = 32

58. 8 4 – 4 3 = _ _ 4 1
+10
+10
+10
+10 +1 43 53 63 73 83 84
Adding by counting forwards on a number line

59. 8 4 – 4 3 = _ _ 4 1
+40 +1 43 83 84
Adding by counting forwards on a number line

60. 7 1 – 5 6 = _ _ 1 5
+10 +1 +1 +1 +1 +1 56 66 67 68 69 70 71
Adding by counting forwards on a number line

61. 7 1 – 5 6 = _ _ 1 5
+10 +4 +1 56 66 70 71
Adding by counting forwards on a number line

62. 8 2 – 5 8 = _ _ 2 4
+10
+10 +1 +1 +1 +1 58 68 78 79 80 81 82
Adding by counting forwards on a number line

63. 8 2 – 5 8 = _ _ 2 4
+20 +2 +2 58 78 80 82
Adding by counting forwards on a number line

64. 7 0 – 3 8 = _ _ 3 2
+10
+10
+10 +1 +1 38 48 58 68 69 70
Adding by counting forwards on a number line

65. 7 0 – 3 8 = _ _ 3 2
+30 +2 38 68 70
Adding by counting forwards on a number line

67. = 52
Adding by counting forwards on a number line

68. = 68
Adding by counting forwards on a number line

69. 6 + 9 = 15
Adding by counting forwards on a number line

70. = 38
Adding by counting forwards on a number line

71. = 66
Adding by counting forwards on a number line

72. = 52
Adding by counting forwards on a number line

74. = 52
+10 -1 43 52 53
Adding by counting forwards on a number line

75. = 68
+10 -1 59 68 69
Adding by counting forwards on a number line

76. 6 + 9 = 15
+10 -1 6 15 16
Adding by counting forwards on a number line

77. = 38 +1
-10 37 38 47
Adding by counting forwards on a number line

78. = 66 +1
-10 65 66 75
Adding by counting forwards on a number line

79. = 52 +1
-10 51 52 61
Adding by counting forwards on a number line

81. = 62
Adding by counting forwards on a number line

82. = 35
Adding by counting forwards on a number line

83. = 96
Adding by counting forwards on a number line

84. = 55
Adding by counting forwards on a number line

85. = 7
Adding by counting forwards on a number line

86. = 38
Adding by counting forwards on a number line

88. = 62
+10 -2 54 62 64
Adding by counting forwards on a number line

89. = 35
+10 -2 27 35 37
Adding by counting forwards on a number line

90. = 96
+10 -2 88 96 98
Adding by counting forwards on a number line

91. = 55 +2
-10 53 55 63
Adding by counting forwards on a number line

92. = 7 +2
-10 5 7 15
Adding by counting forwards on a number line

93. = 38 +2
-10 36 38 46
Adding by counting forwards on a number line

95. = 62
Adding by counting forwards on a number line

96. = 94
Adding by counting forwards on a number line

97. = 41
Adding by counting forwards on a number line

98. = 38
Adding by counting forwards on a number line

99. = 41
Adding by counting forwards on a number line

100. = 32
Adding by counting forwards on a number line

102. = 62
+30 -1 33 62 63
Adding by counting forwards on a number line

103. = 94
+40 -1 55 94 95
Adding by counting forwards on a number line

104. = 41
+20 -1 22 41 42
Adding by counting forwards on a number line

105. = 38 +1
-20 37 38 57
Adding by counting forwards on a number line

106. = 41 +1
-30 40 41 70
Adding by counting forwards on a number line

107. = 32 +1
-50 31 32 81
Adding by counting forwards on a number line

109. = 92
Adding by counting forwards on a number line

110. = 45
Adding by counting forwards on a number line

111. = 97
Adding by counting forwards on a number line

112. = 49
Adding by counting forwards on a number line

113. = 35
Adding by counting forwards on a number line

114. = 26
Adding by counting forwards on a number line

116. = 92
+30 -2 64 92 94
Adding by counting forwards on a number line

117. = 45
+20 -2 27 45 47
Adding by counting forwards on a number line

118. = 97
+30 -2 69 97 99
Adding by counting forwards on a number line

119. = 49 +2
-30 47 49 77
Adding by counting forwards on a number line

120. = 35 +2
-50 33 35 83
Adding by counting forwards on a number line

121. = 26 +2
-20 24 26 44
Adding by counting forwards on a number line

123. 16 7 9 3 4 5

124. 27 12 15 5 7 8

125. 27 13 14 8 5 9

126. 27 12 15 5 7 8

128. 2 + + = 4 3 9
Start with largest
4 + 3 = 7
7 + 2 = 9

129. + + = 4 5 8 17 8 + 5 = 13 13 + 4 = 17 Start with largest Bridging 8 10+2 +3
8 + 5 = 13 8 10 13 = 17

130. 4 + + 1 6 + 7 = 18
Make ten
6 + 4 = 10 = 17 = 18

131. 4 + + 7 6 + 3 = 20
Make ten
4 + 6 = 10
Make ten
7 + 3 = 10 = 20

132. 5 + + 7 6 + 5 = 23
Make ten
5 + 5 = 10 = 17
Bridging +3 +3 = 23 17 20 23

133. 2 + + 9 8 + 9 = 28
Make ten
2 + 8 = 10 = 19
+10 -1
Add 9 (10-1) 19 28 29 = 28

135. 4 6 + _ _ = 100 5 4
= 100
100
100 – 54 = 46 46 54
100 – 46 = 54

136. 4 6 + _ _ = 100 5 4 40 6 50 4
= 90
6 + 4 = 10
100

137. 3 3 + _ _ = 100 6 7
= 100
100
100 – 67 = 33 33 67
100 – 33 = 67

138. 3 3 + _ _ = 100 6 7 30 3 60 7
= 90
3 + 7 = 10
100

139. 7 1 + _ _ = 100 9 2 70 1
70 + __ = 90 20
1 + _ = 10 9
100

140. 7 1 + _ _ = 100 2 9
= 100
100
100 – 29 = 71 71 29
100 – 71 = 29

141. 5 7 + _ _ = 100 3 4 50 7
50 + __ = 90 40
7 + _ = 10 3
100

142. 8 5 + _ _ = 100 5 1 80 5
80 + __ = 90 10
5 + _ = 10 5
100

144. 10 4 9 4 9 20 4 9 30 4 9 40 4 9 50 4 9 60 4 9 70 4 9

145. 8 13 18 23 28 33 38 43 48 53
Complete +10 number sequences

146. 90 1 80 6 1 70 6 1 60 6 1 50 6 1 40 6 1 30 6 1 20 6 1

147. 93 88 83 78 73 68 63 58 53 48
Complete +10 number sequences