1.
781 – 80 =
701
3
2
4
|
2.
670 – 90 =
3
580
4
2
|
3.
463 + 90 =
553
3
2
4
|
4.
820 + 80 =
900
2
4
3
|
5.
106 – 30 =
3
2
76
4
|
6.
328 + 30 =
3
358
4
2
|
7.
880 + 20 =
4
900
2
3
|
8.
816 + 80 =
3
4
2
896
|
9.
642 + 20 =
2
3
662
4
|
10.
849 – 90 =
3
2
759
4
|
11.
533 + 40 =
3
4
573
2
|
12.
549 – 80 =
2
469
3
4
|
13.
189 – 80 =
4
3
2
109
|
14.
783 – 20 =
2
3
4
763
|
15.
349 + 90 =
439
4
2
3
|
16.
214 – 90 =
3
124
2
4
|
17.
227 – 70 =
3
4
2
157
|
18.
500 + 10 =
2
4
3
510
|
19.
264 + 20 =
3
284
2
4
|
20.
641 – 80 =
4
3
2
561
|
1.
781 – 80 =
701
3
2
4
|
2.
670 – 90 =
3
580
4
2
|
3.
463 + 90 =
553
3
2
4
|
4.
820 + 80 =
900
2
4
3
|
5.
106 – 30 =
3
2
76
4
|
6.
328 + 30 =
3
358
4
2
|
7.
880 + 20 =
4
900
2
3
|
8.
816 + 80 =
3
4
2
896
|
9.
642 + 20 =
2
3
662
4
|
10.
849 – 90 =
3
2
759
4
|
11.
533 + 40 =
3
4
573
2
|
12.
549 – 80 =
2
469
3
4
|
13.
189 – 80 =
4
3
2
109
|
14.
783 – 20 =
2
3
4
763
|
15.
349 + 90 =
439
4
2
3
|
16.
214 – 90 =
3
124
2
4
|
17.
227 – 70 =
3
4
2
157
|
18.
500 + 10 =
2
4
3
510
|
19.
264 + 20 =
3
284
2
4
|
20.
641 – 80 =
4
3
2
561
|