|
1.
493 – 179 =
2
3
314
4
|
2.
815 – 378 =
2
4
437
3
|
3.
510 + 389 =
899
2
4
3
|
4.
510 – 11 =
3
2
499
4
|
|
5.
556 + 56 =
4
2
612
3
|
6.
553 + 266 =
4
2
819
3
|
7.
170 – 44 =
2
3
126
4
|
8.
193 – 34 =
4
159
3
2
|
|
9.
185 – 63 =
122
2
3
4
|
10.
411 – 189 =
3
2
4
222
|
11.
515 + 256 =
3
771
2
4
|
12.
419 – 278 =
141
2
3
4
|
|
13.
223 – 172 =
51
3
2
4
|
14.
362 – 184 =
3
2
4
178
|
15.
814 – 34 =
2
4
780
3
|
16.
731 – 582 =
3
2
149
4
|
|
17.
953 + 30 =
2
983
4
3
|
18.
382 + 123 =
4
2
3
505
|
19.
940 + 21 =
3
961
2
4
|
20.
177 – 132 =
4
45
3
2
|
|
1.
493 – 179 =
2
3
314
4
|
2.
815 – 378 =
2
4
437
3
|
3.
510 + 389 =
899
2
4
3
|
4.
510 – 11 =
3
2
499
4
|
|
5.
556 + 56 =
4
2
612
3
|
6.
553 + 266 =
4
2
819
3
|
7.
170 – 44 =
2
3
126
4
|
8.
193 – 34 =
4
159
3
2
|
|
9.
185 – 63 =
122
2
3
4
|
10.
411 – 189 =
3
2
4
222
|
11.
515 + 256 =
3
771
2
4
|
12.
419 – 278 =
141
2
3
4
|
|
13.
223 – 172 =
51
3
2
4
|
14.
362 – 184 =
3
2
4
178
|
15.
814 – 34 =
2
4
780
3
|
16.
731 – 582 =
3
2
149
4
|
|
17.
953 + 30 =
2
983
4
3
|
18.
382 + 123 =
4
2
3
505
|
19.
940 + 21 =
3
961
2
4
|
20.
177 – 132 =
4
45
3
2
|