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Mathematics, 24.11.2020 04:50 alexsince4835

The model shows the expression 21 + 9. Which expression is equivalent to this sum?
3(7+3)
307) + 3
0 3+7+3
703 + 3)

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The model shows the expression 21 + 9. Which expression is equivalent to this sum?
3(7+3)
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