Rounding: hundreds, a given place, up and down; estimating sums
Answers are for parents and teachers.
1
Round 3 549 to the nearest hundred.
3 500
2
Round 14 499 to the nearest thousand.
14 000
3
Round 3 786 up to the thousands.
4 000
4
285 pupils need buses with 40 seats each. How many buses are needed?
8
5
Find the lower bound of the sum 632 + 947 (600 + 900).
1500