Multiplication
10x1
10
9 rounded to the nearest 10
10
10 divide by 2
5
10+10
20
10-10
0
100x10
1000
279 rounded to the nearest 100
300
200 divide by 100
100
100+10
110
200-100
100
200x9
1,800
182 Rounded to the nearest 25
175
82 divide by 82
1
100+100+100
300
500-200
300
1000x15
15000
149 rounded to the nearest 100
100
72 divide by 8
9
1000+1000+200
2200
400-300
100
1000x500
500000
639 rounded to the nearest 25
650
100 divide by 50
50
1785+293
2078
500-400-100
0