|
1.
644 – 438 =
2
206
|
2.
985 + 13 =
998
2
|
3.
985 – 404 =
581
2
|
4.
25 – 3 =
2
22
|
|
5.
77 + 542 =
619
2
|
6.
576 – 387 =
189
2
|
7.
289 – 284 =
5
1
|
8.
554 – 518 =
36
2
|
|
9.
431 + 486 =
917
2
|
10.
436 – 307 =
129
2
|
11.
153 – 72 =
81
2
|
12.
97 + 818 =
2
915
|
|
13.
920 – 277 =
643
2
|
14.
204 + 793 =
997
2
|
15.
197 + 278 =
2
475
|
16.
604 + 27 =
631
2
|
|
17.
62 + 717 =
2
779
|
18.
238 + 175 =
2
413
|
19.
649 – 249 =
2
400
|
20.
592 + 378 =
970
2
|
|
1.
644 – 438 =
2
206
|
2.
985 + 13 =
998
2
|
3.
985 – 404 =
581
2
|
4.
25 – 3 =
2
22
|
|
5.
77 + 542 =
619
2
|
6.
576 – 387 =
189
2
|
7.
289 – 284 =
5
1
|
8.
554 – 518 =
36
2
|
|
9.
431 + 486 =
917
2
|
10.
436 – 307 =
129
2
|
11.
153 – 72 =
81
2
|
12.
97 + 818 =
2
915
|
|
13.
920 – 277 =
643
2
|
14.
204 + 793 =
997
2
|
15.
197 + 278 =
2
475
|
16.
604 + 27 =
631
2
|
|
17.
62 + 717 =
2
779
|
18.
238 + 175 =
2
413
|
19.
649 – 249 =
2
400
|
20.
592 + 378 =
970
2
|