Estimate the answers to these calculations:
a) 22.1 x 37.8/8.2
b) 4.7 x 72.3/0.481
a) 22.1 x 37.8 / 8.2
Using estimation, we can round the numbers to the nearest whole number:
22 x 38 / 8
Simplifying further, we get:
836 / 8
The approximate answer is:
104.5
b) 4.7 x 72.3 / 0.481
Rounding the numbers:
5 x 72 / 0.5
Simplifying:
360 / 0.5
The approximate answer is:
720