Tive property, and wri Use the model to find the missing number in the pai equivalent expressions 15 + 9 = ?(5 + 3) What number is missing from the expression?

Tive property, and wri Use the model to find the missing number in the pai equivalent expressions 15 + 9 = ?(5 + 3) What number is missing from the expression?

asked Mar 28, 2023 132k views

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