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ADDITION OH WHOLE NUMBERS: 12+ 7=, 13+10=, 19+21=, 26+9=, 5+18=, 45+33=, 29+15=

Mathematics

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Step-by-step solution

2 steps
  1. Calculate the sum for each problem.

    • For the first problem: 12+7=1912 + 7 = 19
    • For the second problem: 13+10=2313 + 10 = 23
    • For the third problem: 19+21=4019 + 21 = 40
    • For the fourth problem: 26+9=3526 + 9 = 35
    • For the fifth problem: 5+18=235 + 18 = 23
    • For the sixth problem: 45+33=7845 + 33 = 78
    • For the seventh problem: 29+15=4429 + 15 = 44
  2. Present the final answers.

    The completed additions are:

    12+7=1912 + 7 = \boxed{\text{19}} 13+10=2313 + 10 = \boxed{\text{23}} 19+21=4019 + 21 = \boxed{\text{40}} 26+9=3526 + 9 = \boxed{\text{35}} 5+18=235 + 18 = \boxed{\text{23}} 45+33=7845 + 33 = \boxed{\text{78}} 29+15=4429 + 15 = \boxed{\text{44}}
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