1.
527 – 30 =
497
2
4
3
|
2.
159 + 50 =
209
4
3
2
|
3.
871 – 20 =
3
2
4
851
|
4.
972 + 60 =
3
1032
4
2
|
5.
499 – 60 =
4
2
439
3
|
6.
761 + 80 =
3
4
841
2
|
7.
696 – 80 =
3
4
616
2
|
8.
219 + 10 =
3
4
229
2
|
9.
904 – 30 =
3
4
874
2
|
10.
176 – 80 =
4
96
3
2
|
11.
224 – 90 =
3
4
2
134
|
12.
374 – 70 =
4
3
2
304
|
13.
126 + 100 =
3
4
226
2
|
14.
582 + 40 =
4
3
2
622
|
15.
970 + 40 =
1010
3
2
4
|
16.
717 + 80 =
797
2
3
4
|
17.
314 – 20 =
3
4
2
294
|
18.
137 – 70 =
67
2
4
3
|
19.
555 – 10 =
3
545
4
2
|
20.
351 + 30 =
2
3
381
4
|
1.
527 – 30 =
497
2
4
3
|
2.
159 + 50 =
209
4
3
2
|
3.
871 – 20 =
3
2
4
851
|
4.
972 + 60 =
3
1032
4
2
|
5.
499 – 60 =
4
2
439
3
|
6.
761 + 80 =
3
4
841
2
|
7.
696 – 80 =
3
4
616
2
|
8.
219 + 10 =
3
4
229
2
|
9.
904 – 30 =
3
4
874
2
|
10.
176 – 80 =
4
96
3
2
|
11.
224 – 90 =
3
4
2
134
|
12.
374 – 70 =
4
3
2
304
|
13.
126 + 100 =
3
4
226
2
|
14.
582 + 40 =
4
3
2
622
|
15.
970 + 40 =
1010
3
2
4
|
16.
717 + 80 =
797
2
3
4
|
17.
314 – 20 =
3
4
2
294
|
18.
137 – 70 =
67
2
4
3
|
19.
555 – 10 =
3
545
4
2
|
20.
351 + 30 =
2
3
381
4
|