|
1.
970 + 20 =
2
3
4
990
|
2.
640 + 70 =
4
3
710
2
|
3.
150 + 60 =
210
4
3
2
|
4.
556 + 80 =
4
3
2
636
|
|
5.
475 – 30 =
445
2
4
3
|
6.
946 – 60 =
886
2
3
4
|
7.
682 + 60 =
3
742
4
2
|
8.
973 – 10 =
2
963
4
3
|
|
9.
495 – 40 =
3
4
2
455
|
10.
808 + 40 =
848
4
3
2
|
11.
929 + 90 =
1019
2
4
3
|
12.
350 – 20 =
2
4
3
330
|
|
13.
371 – 30 =
4
2
3
341
|
14.
301 – 40 =
4
2
261
3
|
15.
263 + 80 =
2
343
4
3
|
16.
843 + 30 =
3
2
4
873
|
|
17.
275 – 30 =
4
245
2
3
|
18.
599 + 90 =
2
689
4
3
|
19.
555 + 50 =
3
605
4
2
|
20.
529 – 50 =
479
3
4
2
|
|
1.
970 + 20 =
2
3
4
990
|
2.
640 + 70 =
4
3
710
2
|
3.
150 + 60 =
210
4
3
2
|
4.
556 + 80 =
4
3
2
636
|
|
5.
475 – 30 =
445
2
4
3
|
6.
946 – 60 =
886
2
3
4
|
7.
682 + 60 =
3
742
4
2
|
8.
973 – 10 =
2
963
4
3
|
|
9.
495 – 40 =
3
4
2
455
|
10.
808 + 40 =
848
4
3
2
|
11.
929 + 90 =
1019
2
4
3
|
12.
350 – 20 =
2
4
3
330
|
|
13.
371 – 30 =
4
2
3
341
|
14.
301 – 40 =
4
2
261
3
|
15.
263 + 80 =
2
343
4
3
|
16.
843 + 30 =
3
2
4
873
|
|
17.
275 – 30 =
4
245
2
3
|
18.
599 + 90 =
2
689
4
3
|
19.
555 + 50 =
3
605
4
2
|
20.
529 – 50 =
479
3
4
2
|