Juan used the expression 16 - 9 - 12 + 22 to find his profit for days 2 and 3. He rewrote the expression as 16 + (-9) + (-12) + 22. Juan can use the associative and commutative properties to rewrite the expression again. Explain why he had to use the additive inverse before he could use these properties.

Question

Mathematics

Madden Decker

25 July, 10:18

Juan used the expression 16 - 9 - 12 + 22 to find his profit for days 2 and 3. He rewrote the expression as 16 + (-9) + (-12) + 22. Juan can use the associative and commutative properties to rewrite the expression again. Explain why he had to use the additive inverse before he could use these properties.

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Keon · Answer 1

The associative and commutative properties can be applied only to problems with addition. Juan had to change the subtraction to addition by adding the additive inverse.