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SIX ADDITION STRATEGIES

SIX ADDITION STRATEGIES. #1 Round and Adjust:. 63 + 28 =. 63 + 30 = 93. 93 - 2 = 91. #1 Round and Adjust:. 34 + 47 =. #2 Take and Give. 63 + 28. +2. 63 + 28. 61 + 30 = 91. #2 Take and Give. 35 + 29 =. #3 Start from the Left. 63 + 28. 60 + 20 = 80. 3 + 8 = 11.

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SIX ADDITION STRATEGIES

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  1. SIXADDITION STRATEGIES

  2. #1 Round and Adjust: 63 + 28 = 63 + 30 = 93 93-2 = 91

  3. #1 Round and Adjust: 34+47 =

  4. #2 Take and Give 63 + 28 +2 63 + 28 61 + 30 = 91

  5. #2 Take and Give 35+29=

  6. #3 Start from the Left 63 +28 60+ 20= 80 3+ 8= 11 80+ 11 = 91

  7. #3 Start from the Left 57 + 36

  8. #4 Break One Addend Apart 63 +28 63+ 20= 83 83+ 8= 91

  9. #4 Break One Addend Apart Another Way 63 +28 60+ 28= 88 88+ 3= 91

  10. #4 Break One Addend Apart 24+ 49

  11. #5 Add Up 63 + 28 + 7 + 20 + 1 83 90 91 63

  12. #5 Add Up Another Way 63 + 28 + 60 + 2 + 1 90 91 88 28

  13. #5 Add Up 27 + 65

  14. #6 Standard Algorithm 63 + 28 Put 1 one down and carry 1 ten 3 ones plus 8 ones = 11 ones 1 ten + 6 tens + 2 tens = 9 tens 1 + 6 3 91 2 8

  15. #6 Standard Algorithm 38 + 42 = 38 710 + 42

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