Question

Please help: Work out an estimate to these calculations

1) 4.34×2.8 / 2

2) 91.2-72.4 / 17

3) 99.83×4.7 / 9

Answer 1

6 , 1, 50

Explanation:

1) 4 * 3 /2 = 6

2) (90 - 70) / 20 = 1

3) 100 * 5 / 10 = 50