1.
75 – 46 =
29
4
2
3
|
2.
570 – 536 =
34
2
3
4
|
3.
523 + 38 =
2
3
561
4
|
4.
579 + 329 =
4
908
3
2
|
5.
123 + 775 =
3
2
898
4
|
6.
202 + 18 =
220
2
4
3
|
7.
768 + 19 =
4
2
787
3
|
8.
159 – 157 =
1
4
2
3
|
9.
155 + 345 =
4
3
2
500
|
10.
64 – 3 =
4
61
2
3
|
11.
418 – 121 =
297
3
2
4
|
12.
481 + 370 =
3
4
851
2
|
13.
447 – 281 =
2
166
4
3
|
14.
633 + 280 =
913
3
4
2
|
15.
467 + 109 =
3
2
4
576
|
16.
161 + 202 =
4
363
3
2
|
17.
273 – 224 =
49
2
3
4
|
18.
635 – 297 =
338
4
3
2
|
19.
91 – 4 =
3
4
2
87
|
20.
168 + 365 =
4
3
533
2
|
1.
75 – 46 =
29
4
2
3
|
2.
570 – 536 =
34
2
3
4
|
3.
523 + 38 =
2
3
561
4
|
4.
579 + 329 =
4
908
3
2
|
5.
123 + 775 =
3
2
898
4
|
6.
202 + 18 =
220
2
4
3
|
7.
768 + 19 =
4
2
787
3
|
8.
159 – 157 =
1
4
2
3
|
9.
155 + 345 =
4
3
2
500
|
10.
64 – 3 =
4
61
2
3
|
11.
418 – 121 =
297
3
2
4
|
12.
481 + 370 =
3
4
851
2
|
13.
447 – 281 =
2
166
4
3
|
14.
633 + 280 =
913
3
4
2
|
15.
467 + 109 =
3
2
4
576
|
16.
161 + 202 =
4
363
3
2
|
17.
273 – 224 =
49
2
3
4
|
18.
635 – 297 =
338
4
3
2
|
19.
91 – 4 =
3
4
2
87
|
20.
168 + 365 =
4
3
533
2
|