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+/- Numbers Year 2 – Addition and subtraction of units within 100
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30 20 6 7 8 5 9 4 1 2 3 twenty-seven twenty-eight thirty twenty-six
twenty-nine twenty-three twenty twenty-one twenty-two twenty-four twenty-five
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40 30 6 7 8 5 9 4 1 2 3 thirty-seven thirty-eight forty thirty-six
thirty-nine thirty-three thirty thirty-one thirty-two thirty-four thirty-five
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50 40 6 7 8 5 9 4 1 2 3 forty-seven forty-eight fifty forty-six
forty-nine forty-three forty forty-one forty-two forty-four forty-five
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60 50 6 7 8 5 9 4 1 2 3 fifty-seven fifty-eight sixty fifty-six
fifty-nine fifty-three fifty fifty-one fifty-two fifty-four fifty-five
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70 60 6 7 8 5 9 4 1 2 3 sixty-seven sixty-eight seventy sixty-six
sixty-nine sixty-three sixty sixty-one sixty-two sixty-four sixty-five
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80 70 6 7 8 5 9 4 1 2 3 seventy-seven seventy-eight eighty seventy-six
seventy-nine seventy-three seventy seventy-one seventy-two seventy-four seventy-five
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90 80 6 7 8 5 9 4 1 2 3 eighty-seven eighty-eight ninety eighty-six
eighty-nine eighty-three eighty eighty-one eighty-two eighty-four eighty-five
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100 90 6 7 8 5 9 4 1 2 3 ninety-seven ninety-eight one hundred
ninety-six ninety-nine ninety-three ninety ninety-one ninety-two ninety-four ninety-five
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100 one hundred
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30 5 thirty-five = 35
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60 8 sixty-eight = 68
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80 1 eighty-one = 81
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55 < 71
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55 > 51
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41 > 14
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62 > 26
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Put these numbers into ascending order.
30 32 21 12 33 12 21 30 32 33
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Put these numbers into ascending order.
72 7 23 32 27 7 23 27 32 72
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80 7 6 Find 1 more than 86.
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80 5 6 Find 1 less than 86.
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50 40 9 Find 1 more than 49.
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40 8 9 Find 1 less than 49.
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30 1 Find 1 more than 30.
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20 30 9 Find 1 less than 30.
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34 35 36 37 38 Adding 1 Increasing Ascending Counting forwards
Getting bigger Counting forwards Adding 1 Increasing Ascending
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57 58 59 60 61
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76 77 78 79 80
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64 65 66 67 68
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96 95 94 93 92 Decreasing Counting backwards Getting smaller
Subtracting 1 Decreasing Descending
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32 31 30 29 28
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53 52 51 50 49
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81 80 79 78 77
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57 58 59 60 61 +1 +2 +3 +4
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= 43
42
= 52
43
= 60
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= 43 38 39 40 41 42 43
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= 52 46 47 48 49 50 51 52
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= 60 56 57 58 59 60
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= 35 Adding units to tens
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= 68 Adding units to tens
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= 96 Adding units to tens
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= 59 Adding units to tens
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= 60
55
= 50
56
= 80
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= 43 +2 +3 38 40 43 Adding by counting forwards on a number line
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= 52 +4 +2 46 50 52 Adding by counting forwards on a number line
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= 22 +5 +2 15 20 22 Adding by counting forwards on a number line
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= 66 +2 +6 58 60 66 Adding by counting forwards on a number line
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28 29 30 31 32 -4 -3 -2 -1
64
= 62
65
= 38
66
= 59
68
= 62 62 63 64 65 66 67 68
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= 38 38 39 40 41 42 43
70
= 59 59 60 61 62 63 64 65 66
72
= 60 Adding units to tens
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= 90 Adding units to tens
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= 50 Adding units to tens
76
= 55 55 56 57 58 59 60
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= 55 55 60
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= 43 43 50
79
= 38 38 40
81
= 38 -2 -3 38 40 43
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= 59 -1 -6 59 60 66
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= 37 -3 -1 37 40 41
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= 47 -3 -6 47 50 56
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