|
1.
423 – 252 =
4
2
171
3
|
2.
69 + 321 =
3
390
4
2
|
3.
289 + 12 =
301
4
3
2
|
4.
921 – 337 =
2
4
584
3
|
|
5.
47 – 15 =
32
4
2
3
|
6.
780 – 96 =
2
3
4
684
|
7.
390 – 66 =
2
324
4
3
|
8.
189 + 8 =
3
4
197
2
|
|
9.
5 – 1 =
1
4
2
3
|
10.
23 + 474 =
497
4
3
2
|
11.
128 + 322 =
4
450
2
3
|
12.
431 + 283 =
714
3
2
4
|
|
13.
55 + 725 =
4
2
3
780
|
14.
469 + 485 =
4
954
3
2
|
15.
39 + 589 =
628
4
3
2
|
16.
816 + 22 =
4
2
3
838
|
|
17.
42 + 516 =
3
4
2
558
|
18.
31 + 68 =
99
4
2
3
|
19.
168 + 166 =
3
4
2
334
|
20.
291 + 660 =
3
2
951
4
|
|
1.
423 – 252 =
4
2
171
3
|
2.
69 + 321 =
3
390
4
2
|
3.
289 + 12 =
301
4
3
2
|
4.
921 – 337 =
2
4
584
3
|
|
5.
47 – 15 =
32
4
2
3
|
6.
780 – 96 =
2
3
4
684
|
7.
390 – 66 =
2
324
4
3
|
8.
189 + 8 =
3
4
197
2
|
|
9.
5 – 1 =
1
4
2
3
|
10.
23 + 474 =
497
4
3
2
|
11.
128 + 322 =
4
450
2
3
|
12.
431 + 283 =
714
3
2
4
|
|
13.
55 + 725 =
4
2
3
780
|
14.
469 + 485 =
4
954
3
2
|
15.
39 + 589 =
628
4
3
2
|
16.
816 + 22 =
4
2
3
838
|
|
17.
42 + 516 =
3
4
2
558
|
18.
31 + 68 =
99
4
2
3
|
19.
168 + 166 =
3
4
2
334
|
20.
291 + 660 =
3
2
951
4
|