|
1.
454 – 20 =
3
2
4
434
|
2.
584 – 50 =
3
4
2
534
|
3.
518 + 10 =
3
528
4
2
|
4.
238 + 40 =
2
3
278
4
|
|
5.
334 – 70 =
264
3
4
2
|
6.
102 + 90 =
4
2
3
192
|
7.
648 – 50 =
2
3
598
4
|
8.
848 + 90 =
4
938
3
2
|
|
9.
885 + 30 =
4
915
2
3
|
10.
864 – 80 =
4
2
784
3
|
11.
126 – 30 =
4
3
96
2
|
12.
243 – 100 =
2
4
3
143
|
|
13.
386 – 20 =
3
366
4
2
|
14.
505 – 70 =
435
4
3
2
|
15.
353 + 10 =
363
4
3
2
|
16.
459 + 30 =
4
489
2
3
|
|
17.
681 + 60 =
2
4
741
3
|
18.
143 – 30 =
113
2
4
3
|
19.
629 + 80 =
709
4
2
3
|
20.
861 – 50 =
811
2
3
4
|
|
1.
454 – 20 =
3
2
4
434
|
2.
584 – 50 =
3
4
2
534
|
3.
518 + 10 =
3
528
4
2
|
4.
238 + 40 =
2
3
278
4
|
|
5.
334 – 70 =
264
3
4
2
|
6.
102 + 90 =
4
2
3
192
|
7.
648 – 50 =
2
3
598
4
|
8.
848 + 90 =
4
938
3
2
|
|
9.
885 + 30 =
4
915
2
3
|
10.
864 – 80 =
4
2
784
3
|
11.
126 – 30 =
4
3
96
2
|
12.
243 – 100 =
2
4
3
143
|
|
13.
386 – 20 =
3
366
4
2
|
14.
505 – 70 =
435
4
3
2
|
15.
353 + 10 =
363
4
3
2
|
16.
459 + 30 =
4
489
2
3
|
|
17.
681 + 60 =
2
4
741
3
|
18.
143 – 30 =
113
2
4
3
|
19.
629 + 80 =
709
4
2
3
|
20.
861 – 50 =
811
2
3
4
|