|
1.
266 – 115 =
151
4
3
2
|
2.
592 – 31 =
4
2
561
3
|
3.
971 + 28 =
999
3
4
2
|
4.
285 + 271 =
2
556
4
3
|
|
5.
309 – 128 =
3
2
4
181
|
6.
258 + 271 =
3
4
2
529
|
7.
843 + 147 =
2
4
990
3
|
8.
756 – 420 =
336
4
2
3
|
|
9.
578 – 140 =
3
4
2
438
|
10.
970 – 193 =
2
3
777
4
|
11.
5 – 3 =
4
1
3
2
|
12.
928 – 527 =
2
3
401
4
|
|
13.
405 + 51 =
3
2
4
456
|
14.
350 – 221 =
4
3
129
2
|
15.
608 + 348 =
2
956
4
3
|
16.
780 – 672 =
3
108
2
4
|
|
17.
294 + 230 =
524
3
4
2
|
18.
234 – 203 =
31
3
2
4
|
19.
331 – 177 =
2
154
4
3
|
20.
587 – 431 =
2
3
156
4
|
|
1.
266 – 115 =
151
4
3
2
|
2.
592 – 31 =
4
2
561
3
|
3.
971 + 28 =
999
3
4
2
|
4.
285 + 271 =
2
556
4
3
|
|
5.
309 – 128 =
3
2
4
181
|
6.
258 + 271 =
3
4
2
529
|
7.
843 + 147 =
2
4
990
3
|
8.
756 – 420 =
336
4
2
3
|
|
9.
578 – 140 =
3
4
2
438
|
10.
970 – 193 =
2
3
777
4
|
11.
5 – 3 =
4
1
3
2
|
12.
928 – 527 =
2
3
401
4
|
|
13.
405 + 51 =
3
2
4
456
|
14.
350 – 221 =
4
3
129
2
|
15.
608 + 348 =
2
956
4
3
|
16.
780 – 672 =
3
108
2
4
|
|
17.
294 + 230 =
524
3
4
2
|
18.
234 – 203 =
31
3
2
4
|
19.
331 – 177 =
2
154
4
3
|
20.
587 – 431 =
2
3
156
4
|