Multiples of 10 Subtraction
50-20
30
10+7
17
9-8
1
11 + = 15
4
3+8=11
11-3=8
11-8=3
70-30
40
9+9
18
5-3
2
- 3 = 6
9
9+10=19
19-10=9
19-9=10
90-60
30
9+6
15
10-6
4
16 - = 4
12
6+6=12
12-6=6
100-20
80
8+3
11
8-5
3
+ 7= 12
5
7+11=18
18-11=7
18-7=11
80-30
50
6+8
14
7-6
1
- 3= 17
20
15+4=19
19-15=4
9-4=15