3 and 8
24 is a reasonable estimate. (78% of 31 is 24.18).
3.9383
0.32
3,618 is.
78.75
a moderate estimate, not expensive, reasonable in price
Estimate the answer. If the calculated answer is close to the estimate then it is reasonable.
3 + 379 = 382
It'll be a little more than half. Estimate 87.
12 centimetres is a reasonable estimate.
540/60 = 9
It'll be a little more than half. Estimate 87.