Question

Select all that apply.

Which of the following expressions could you use to estimate 47% of 89?


1/2 · 90
0.5 · 90
0.47 · 89
90/2

Answer 1

The first and second one

Explanation:

Answer 2

Given:
47% of 89

Exact solution is : 0.47 * 89 = 41.83

Estimates: you round the number to the nearest tens.
47% can be 50% ; 89 can be 90

0.50 * 90 = 45

50% is the same as 1/2
1/2 * 90 = 45

90/2 is also applicable to estimate for the above figure. 90/2 = 45