Mathematics, 15.02.2021 01:20, Jasminelane6478

The model shows the addition expression 18 + 12. A model containing 3 rows of 6 orange squares and 3 rows of 4 blue squares.
One expression that is equivalent to this sum is
srry i dont have pic

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The model shows the addition expression 18 + 12. A model containing 3 rows of 6 orange squares and...