1) 23 + 46 = ___ (number line) 2) 24 + 48 = ___ (number line) 3) 73 + 12 = ___ (number line) 4) 63 + 28 = ___ (number line) 5) 65 + 25 = ___ (break apart) 6) 27 + 28 = ___ (break apart) 7) 44 + 29 = ___ (break apart) 8) 52 + 13 = ___ (break apart) 9) 25 + 75 = ___ (model) 10) 29 + 31 = ___ (model) 11) 33 + 35 = ___ (model) 12) 79 + 35 = ___ (model)

Solve.

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