|
1.
520 – 50 =
2
470
|
2.
233 – 151 =
82
2
|
3.
695 – 335 =
360
2
|
4.
635 – 546 =
89
2
|
|
5.
277 – 93 =
184
2
|
6.
156 + 225 =
381
2
|
7.
643 + 55 =
2
698
|
8.
607 + 247 =
854
2
|
|
9.
871 + 21 =
2
892
|
10.
1 + 795 =
2
796
|
11.
328 + 426 =
754
2
|
12.
369 – 60 =
2
309
|
|
13.
855 – 405 =
2
450
|
14.
612 – 526 =
2
86
|
15.
420 – 297 =
123
2
|
16.
41 + 809 =
2
850
|
|
17.
522 + 366 =
2
888
|
18.
45 + 144 =
189
2
|
19.
354 – 87 =
2
267
|
20.
793 – 12 =
781
2
|
|
1.
520 – 50 =
2
470
|
2.
233 – 151 =
82
2
|
3.
695 – 335 =
360
2
|
4.
635 – 546 =
89
2
|
|
5.
277 – 93 =
184
2
|
6.
156 + 225 =
381
2
|
7.
643 + 55 =
2
698
|
8.
607 + 247 =
854
2
|
|
9.
871 + 21 =
2
892
|
10.
1 + 795 =
2
796
|
11.
328 + 426 =
754
2
|
12.
369 – 60 =
2
309
|
|
13.
855 – 405 =
2
450
|
14.
612 – 526 =
2
86
|
15.
420 – 297 =
123
2
|
16.
41 + 809 =
2
850
|
|
17.
522 + 366 =
2
888
|
18.
45 + 144 =
189
2
|
19.
354 – 87 =
2
267
|
20.
793 – 12 =
781
2
|