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Look at the 4 steps in the example below and then try the questions that follow. |
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Follow the steps shown above and mark the 'jumps' and numbers on the number lines to help find the missing number. The first one is done. |
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27 + 73 = 100
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66 + 34 = 100
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Follow the examples and steps on page 1 to answer these questions: |
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35 + 65 = 100
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26 + 74 = 100
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79 + 21 = 100
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87 + 13 = 100
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18 + 82 = 100
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67 + 33 = 100
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38 + 62 = 100
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45 + 55 = 100
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Follow the examples and steps on page 1 to answer these questions: |
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56 + 44 = 100
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77 + 23 = 100
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29 + 71 = 100
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48 + 52 = 100
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Answer these questions. Try to picture a number line and the steps in your mind to help. |
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76 + 24 = 100 |
86 + 14 = 100 |
36 + 64 = 100 |
17 + 83 = 100 |
27 + 73 = 100 |
47 + 53 = 100 |
75 + 25 = 100 |
85 + 15 = 100 |
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The various resources listed below are aligned to the same standard, (2NBT05) taken from the CCSM (Common Core Standards For Mathematics) as the Addition and subtraction Worksheet shown above.
Fluently add and subtract within 100 using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction.
Similar to the above listing, the resources below are aligned to related standards in the Common Core For Mathematics that together support the following learning outcome:
Use place value understanding and properties of operations to add and subtract
