Addition
20+2
22
2-1
1
10x2
20
8 divided by 2
4
1/2 + 1 1/2
2
36+4
40
10-10
0
15x6
90
10 divided by 1
1
1/2 + 10
10 1/2
72+2
74
30-19
11
9x7
63
15 divided by 3
5
1/3 + 70
70 1/2
110+140
250
100-59
41
10x21
210
56 divided by 8
7
1/8 +3/4
7/8
200+335
535
300-21
279
12x9
108
0 divided by1+72+100
172
7/8-1/8
6/8 or 3/4