1.
63 – 20 =
43
4
3
2
|
2.
951 + 47 =
4
998
2
3
|
3.
578 + 165 =
2
3
743
4
|
4.
165 – 39 =
4
3
2
126
|
5.
486 + 248 =
2
734
3
4
|
6.
496 + 495 =
3
991
4
2
|
7.
362 – 6 =
4
2
3
356
|
8.
421 – 86 =
4
3
335
2
|
9.
786 + 67 =
853
4
2
3
|
10.
969 – 80 =
4
889
2
3
|
11.
539 + 146 =
3
685
2
4
|
12.
875 – 398 =
2
3
477
4
|
13.
810 – 54 =
4
756
2
3
|
14.
103 – 23 =
3
80
4
2
|
15.
327 + 314 =
2
641
4
3
|
16.
233 – 133 =
100
3
2
4
|
17.
525 – 481 =
3
44
4
2
|
18.
70 – 1 =
4
2
3
69
|
19.
462 – 442 =
3
4
2
20
|
20.
582 + 21 =
603
4
2
3
|
1.
63 – 20 =
43
4
3
2
|
2.
951 + 47 =
4
998
2
3
|
3.
578 + 165 =
2
3
743
4
|
4.
165 – 39 =
4
3
2
126
|
5.
486 + 248 =
2
734
3
4
|
6.
496 + 495 =
3
991
4
2
|
7.
362 – 6 =
4
2
3
356
|
8.
421 – 86 =
4
3
335
2
|
9.
786 + 67 =
853
4
2
3
|
10.
969 – 80 =
4
889
2
3
|
11.
539 + 146 =
3
685
2
4
|
12.
875 – 398 =
2
3
477
4
|
13.
810 – 54 =
4
756
2
3
|
14.
103 – 23 =
3
80
4
2
|
15.
327 + 314 =
2
641
4
3
|
16.
233 – 133 =
100
3
2
4
|
17.
525 – 481 =
3
44
4
2
|
18.
70 – 1 =
4
2
3
69
|
19.
462 – 442 =
3
4
2
20
|
20.
582 + 21 =
603
4
2
3
|