Adding
21+35
56
9-3
6
4x5
20
10/2
5
5.2+3.1
5.3
54+49
103
15-6
9
10x4
40
16/4
4
7.3+2.3
9.6
68+78
146
65-22
43
5x9
45
40/10
4
9.9-2.3
7.6
102+25
127
91-43
48
21x6
126
50/2
25
10.6-5.9
4.7
592+457
1049
853-765
88
32x21
672
120/20
6
12.4+10.6
23