Perform the indicated operation. then estimate to see whether the proposed results is reasonable. 11.58 + 11.9 + 9.2

32.68

22.68

33.68

31.68 Preform the indicated operation. Then estimate to see whether the proposed result is reasonable.

93.8 - 6.48

87.32

97.44

87.42

94.34

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 Use estimation to determine whether the result is reasonable or not. 108.93 x 32.6 Result: 355.112 Is it reasonable or not?

Question

Mathematics

Iris Hart

2 July, 15:04

Perform the indicated operation. then estimate to see whether the proposed results is reasonable. 11.58 + 11.9 + 9.2

32.68

22.68

33.68

31.68 Preform the indicated operation. Then estimate to see whether the proposed result is reasonable.

93.8 - 6.48

87.32

97.44

87.42

94.34

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 Use estimation to determine whether the result is reasonable or not. 108.93 x 32.6 Result: 355.112 Is it reasonable or not?

+3

Answers (1)

Know the Answer?

Leah Rasmussen · Answer 1

Answers: See below

These problems are best done by rounding to easy numbers, then picking the closest value. Below I gave an example of how to round them and then picked the best answer.

1) 12 + 12 + 10 = 34 So 33.68 is the closest.

2) 94 - 6 = 88 So 87.42 is the closest.

3) 28 x 2 = 56 So 53.62 is the closest.

4) 60 / 100 = 0.6 So 0.641 is the closest.

5) 100 x 30 = 3000 So 355.12 is not reasonable.