|
1.
31 – 17 =
3
1
14
2
|
2.
34 – 12 =
22
2
4
3
|
3.
78 – 28 =
2
3
50
4
|
4.
57 + 20 =
77
4
3
2
|
|
5.
53 + 8 =
2
3
4
61
|
6.
70 – 52 =
3
2
18
4
|
7.
34 + 11 =
3
45
4
2
|
8.
97 – 29 =
4
2
68
3
|
|
9.
40 + 32 =
3
2
4
72
|
10.
25 + 16 =
41
3
4
2
|
11.
77 – 49 =
3
28
4
2
|
12.
81 + 16 =
2
3
97
4
|
|
13.
47 + 37 =
84
2
3
4
|
14.
74 + 1 =
2
4
75
3
|
15.
9 – 0 =
2
9
1
3
|
16.
47 + 12 =
4
59
2
3
|
|
17.
24 – 15 =
3
2
9
1
|
18.
52 + 11 =
63
4
2
3
|
19.
19 – 13 =
1
6
2
3
|
20.
80 + 6 =
4
2
86
3
|
|
1.
31 – 17 =
3
1
14
2
|
2.
34 – 12 =
22
2
4
3
|
3.
78 – 28 =
2
3
50
4
|
4.
57 + 20 =
77
4
3
2
|
|
5.
53 + 8 =
2
3
4
61
|
6.
70 – 52 =
3
2
18
4
|
7.
34 + 11 =
3
45
4
2
|
8.
97 – 29 =
4
2
68
3
|
|
9.
40 + 32 =
3
2
4
72
|
10.
25 + 16 =
41
3
4
2
|
11.
77 – 49 =
3
28
4
2
|
12.
81 + 16 =
2
3
97
4
|
|
13.
47 + 37 =
84
2
3
4
|
14.
74 + 1 =
2
4
75
3
|
15.
9 – 0 =
2
9
1
3
|
16.
47 + 12 =
4
59
2
3
|
|
17.
24 – 15 =
3
2
9
1
|
18.
52 + 11 =
63
4
2
3
|
19.
19 – 13 =
1
6
2
3
|
20.
80 + 6 =
4
2
86
3
|