rounding
round 120 to the nearest 100
100
1 + 3
4
100-200
-100
10 x 5
50
round 351 to the nearest hundred
400
1+7
8
2000-4000
-2000
10 x 6
60
round 247 to the nearest hundred
200
3+3
6
5000-6000
-1000
11 x 5
55
round 1,090 to the nearest thousandth
1,000
4+4
8
10,000-10,000
0
11 x 3
33
round 4,050 to the nearest thousandth
4,000
10+10
20
230-30
200
10 x 9
90