1.
287 – 50 =
2
237
3
4
|
2.
888 – 30 =
3
4
2
858
|
3.
333 + 90 =
4
2
423
3
|
4.
774 + 100 =
4
874
2
3
|
5.
580 – 20 =
4
3
2
560
|
6.
265 + 50 =
4
2
315
3
|
7.
713 – 20 =
2
693
3
4
|
8.
630 + 60 =
3
2
4
690
|
9.
501 + 40 =
2
3
541
4
|
10.
744 – 40 =
704
4
2
3
|
11.
644 + 90 =
3
4
2
734
|
12.
983 + 70 =
4
3
2
1053
|
13.
506 – 20 =
4
2
486
3
|
14.
191 + 100 =
4
291
2
3
|
15.
389 + 60 =
2
449
3
4
|
16.
111 + 10 =
2
3
121
4
|
17.
919 + 20 =
939
2
3
4
|
18.
866 – 40 =
2
4
3
826
|
19.
372 – 10 =
362
3
4
2
|
20.
568 – 40 =
528
3
4
2
|
1.
287 – 50 =
2
237
3
4
|
2.
888 – 30 =
3
4
2
858
|
3.
333 + 90 =
4
2
423
3
|
4.
774 + 100 =
4
874
2
3
|
5.
580 – 20 =
4
3
2
560
|
6.
265 + 50 =
4
2
315
3
|
7.
713 – 20 =
2
693
3
4
|
8.
630 + 60 =
3
2
4
690
|
9.
501 + 40 =
2
3
541
4
|
10.
744 – 40 =
704
4
2
3
|
11.
644 + 90 =
3
4
2
734
|
12.
983 + 70 =
4
3
2
1053
|
13.
506 – 20 =
4
2
486
3
|
14.
191 + 100 =
4
291
2
3
|
15.
389 + 60 =
2
449
3
4
|
16.
111 + 10 =
2
3
121
4
|
17.
919 + 20 =
939
2
3
4
|
18.
866 – 40 =
2
4
3
826
|
19.
372 – 10 =
362
3
4
2
|
20.
568 – 40 =
528
3
4
2
|