Basic subtraction
10 -7
3
10 + 10
20
54 + 19
73
50 - 30
20
What is the sum of 56 + 23
79
15 -15
0
5 + 3
8
64 + 27
91
66 - 6
60
what does the word sum mean?
the answer to an addition problem
20 -11
9
12+10
21
56 +56
112
25 - 20
5
what is the difference between 59 - 54
5
20 - 7
13
7+15
22
43 + 37
80
60 - 20
40
what is the difference between 90 and 20
70
20 -6
14
6 + 6
12
34 + 66
100
73 - 22
51
What is the sum of 69 and 34
103