Round to the nearest tens
35
40
225
200
3,590
4,000
45-28=
17
5X10=
50
57
60
555
600
6,234
6,000
123-78=
45
10X10=
100
12
10
960
1,000
7,843
8,000
535-486=
49
6X8=
48
545
550
2,569
2,600
12,378
12,000
765-277=
488
9X9
81
6,224
6,220
5,219
5,200
15,679
16,000
945-887=
58
12X12=
144