|
1.
57 – 54 =
3
1
|
2.
86 – 45 =
2
41
|
3.
87 + 3 =
2
90
|
4.
60 + 40 =
2
100
|
|
5.
96 + 4 =
2
100
|
6.
52 + 27 =
2
79
|
7.
90 – 73 =
17
2
|
8.
1 – 1 =
0
2
|
|
9.
79 – 14 =
2
65
|
10.
92 + 4 =
2
96
|
11.
13 + 45 =
58
2
|
12.
44 + 5 =
2
49
|
|
13.
83 – 77 =
6
1
|
14.
31 – 20 =
11
1
|
15.
58 + 21 =
79
2
|
16.
1 – 1 =
2
0
|
|
17.
22 – 4 =
18
2
|
18.
27 – 12 =
15
1
|
19.
48 – 9 =
2
39
|
20.
66 + 18 =
2
84
|
|
1.
57 – 54 =
3
1
|
2.
86 – 45 =
2
41
|
3.
87 + 3 =
2
90
|
4.
60 + 40 =
2
100
|
|
5.
96 + 4 =
2
100
|
6.
52 + 27 =
2
79
|
7.
90 – 73 =
17
2
|
8.
1 – 1 =
0
2
|
|
9.
79 – 14 =
2
65
|
10.
92 + 4 =
2
96
|
11.
13 + 45 =
58
2
|
12.
44 + 5 =
2
49
|
|
13.
83 – 77 =
6
1
|
14.
31 – 20 =
11
1
|
15.
58 + 21 =
79
2
|
16.
1 – 1 =
2
0
|
|
17.
22 – 4 =
18
2
|
18.
27 – 12 =
15
1
|
19.
48 – 9 =
2
39
|
20.
66 + 18 =
2
84
|