|
1.
911 – 128 =
783
4
2
3
|
2.
123 + 124 =
3
2
247
4
|
3.
507 + 60 =
3
567
2
4
|
4.
646 – 387 =
4
2
259
3
|
|
5.
505 – 438 =
4
67
2
3
|
6.
832 + 55 =
887
4
3
2
|
7.
819 + 73 =
2
3
4
892
|
8.
60 + 475 =
535
4
3
2
|
|
9.
880 + 119 =
3
2
999
4
|
10.
427 + 332 =
2
759
3
4
|
11.
945 + 36 =
3
981
4
2
|
12.
621 – 575 =
46
4
2
3
|
|
13.
842 – 780 =
4
3
2
62
|
14.
606 + 272 =
2
4
3
878
|
15.
946 + 22 =
968
4
2
3
|
16.
702 + 270 =
972
3
2
4
|
|
17.
281 – 88 =
193
3
4
2
|
18.
885 – 757 =
4
3
2
128
|
19.
421 + 464 =
885
4
3
2
|
20.
179 – 168 =
11
2
1
3
|
|
1.
911 – 128 =
783
4
2
3
|
2.
123 + 124 =
3
2
247
4
|
3.
507 + 60 =
3
567
2
4
|
4.
646 – 387 =
4
2
259
3
|
|
5.
505 – 438 =
4
67
2
3
|
6.
832 + 55 =
887
4
3
2
|
7.
819 + 73 =
2
3
4
892
|
8.
60 + 475 =
535
4
3
2
|
|
9.
880 + 119 =
3
2
999
4
|
10.
427 + 332 =
2
759
3
4
|
11.
945 + 36 =
3
981
4
2
|
12.
621 – 575 =
46
4
2
3
|
|
13.
842 – 780 =
4
3
2
62
|
14.
606 + 272 =
2
4
3
878
|
15.
946 + 22 =
968
4
2
3
|
16.
702 + 270 =
972
3
2
4
|
|
17.
281 – 88 =
193
3
4
2
|
18.
885 – 757 =
4
3
2
128
|
19.
421 + 464 =
885
4
3
2
|
20.
179 – 168 =
11
2
1
3
|