![SOLVED: Which calculation does NOT show how to mentally calculate 16 25 This calculation is impossible to do mentally: X 100 400 (16 20) + (16 x 5) = 320 80 400 4 * 4 * 5 * 5 = 4 * 5 * 4 * 5 20 20 400 (10 * 25) (6 * 25) 250 + 150 400 SOLVED: Which calculation does NOT show how to mentally calculate 16 25 This calculation is impossible to do mentally: X 100 400 (16 20) + (16 x 5) = 320 80 400 4 * 4 * 5 * 5 = 4 * 5 * 4 * 5 20 20 400 (10 * 25) (6 * 25) 250 + 150 400](https://cdn.numerade.com/ask_images/9757859e7b8c48de9bdcadde5a7b9cee.jpg)
SOLVED: Which calculation does NOT show how to mentally calculate 16 25 This calculation is impossible to do mentally: X 100 400 (16 20) + (16 x 5) = 320 80 400 4 * 4 * 5 * 5 = 4 * 5 * 4 * 5 20 20 400 (10 * 25) (6 * 25) 250 + 150 400
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