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11 July, 03:31

Preform the indicated operation. Then choose the best answer. 27.7 x 1.9

5.363

52.63

53.62

5.263

Choose the best estimate. 64.1 : 97

641

6.41

0.641

6410

The estimation to determine whether the result is reasonable or not. 108.93 x 355.112

Reasonable

Not reasonable

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Answers (1)
  1. 11 July, 03:40
    0
    27.7*1.9=52.63 is second choice

    64.1/97=0.66 best answer is 0.641

    108.93*355.112 = 38,682.35 reasonable to do mental math and think like 100*360 will give you an aprox answer
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