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Mathematics, 02.11.2019 04:31 lzjsjdhdgd442
Hilda was simplifying some numerical expressions and made each of the following sequences of calculations. name the mathematical property, operation, or idea that justifies how hilda went from each step to the next step, some of the steps are done for you. look at the math notes found on page 190 for definitions. problem
problem 1: 5 · (−4/3) · (2/5)
= (−4/3) · 5 · (2/5)
= (−4/3) · (5 · (2/5))
= (−4/3) · (2/1) = −8/3 = −2*2/3
problem 2: 17 + 29 + 3+ 1
= 17 + 3 + 29 + 1
= (17 + 3) + (29 + 1)
= 20 + 30 added groups
= 50 added terms
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