Subtraction by fives and tens Flashcards
1
Q
75-25
A
50
2
Q
50-30
A
20
3
Q
20-10
A
10
4
Q
75-30
A
45
5
Q
80-55
A
25
6
Q
40-15
A
25
7
Q
60-40
A
20
8
Q
90-40
A
50
9
Q
20-15
A
5
10
Q
35-25
A
10
11
Q
80-40
A
40
12
Q
55-20
A
35
13
Q
40-35
A
5
14
Q
90-80
A
10
15
Q
15-10
A
5
16
Q
10-10
A
0
17
Q
65-40
A
25
18
Q
70-35
A
35
19
Q
80-30
A
50
20
Q
90-45
A
45
21
Q
60-40
A
20
22
Q
35-25
A
10
23
Q
50-10
A
40
