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Mathematics, 05.10.2020 15:01 duplessistoccara

The model shows the expression 30 + 12. A model with 6 rows of 5 squares and 6 rows of 2 squares.

Which expression is equivalent to this sum?

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The model shows the expression 30 + 12. A model with 6 rows of 5 squares and 6 rows of 2 squares.
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