Rounding and adding natural numbers
Answers are for parents and teachers.
1
Round 7 851 to hundreds.
7 900
2
Round 65 to tens. Why?
70, because 65 is 5 away from both tens (60 and 70) and the larger ten is taken.
3
Compute 58 394 + 6 705.
65099
4
Compute conveniently: 249 + 173 + 51 + 27.
500
5
12 340 kg of potatoes were stored in one warehouse and 5 660 kg in another. How many kg in total?
18000