|
1.
68 – 21 =
2
47
|
2.
314 – 217 =
2
97
|
3.
990 + 10 =
2
1000
|
4.
95 + 597 =
692
2
|
|
5.
390 – 138 =
2
252
|
6.
475 + 94 =
569
2
|
7.
630 + 31 =
661
2
|
8.
590 + 238 =
2
828
|
|
9.
404 – 49 =
2
355
|
10.
872 + 39 =
911
2
|
11.
420 – 40 =
380
2
|
12.
436 + 492 =
928
2
|
|
13.
281 – 196 =
85
2
|
14.
67 – 0 =
67
2
|
15.
121 – 108 =
1
13
|
16.
981 – 728 =
253
2
|
|
17.
531 – 525 =
1
6
|
18.
379 – 27 =
352
2
|
19.
428 – 247 =
2
181
|
20.
599 + 281 =
2
880
|
|
1.
68 – 21 =
2
47
|
2.
314 – 217 =
2
97
|
3.
990 + 10 =
2
1000
|
4.
95 + 597 =
692
2
|
|
5.
390 – 138 =
2
252
|
6.
475 + 94 =
569
2
|
7.
630 + 31 =
661
2
|
8.
590 + 238 =
2
828
|
|
9.
404 – 49 =
2
355
|
10.
872 + 39 =
911
2
|
11.
420 – 40 =
380
2
|
12.
436 + 492 =
928
2
|
|
13.
281 – 196 =
85
2
|
14.
67 – 0 =
67
2
|
15.
121 – 108 =
1
13
|
16.
981 – 728 =
253
2
|
|
17.
531 – 525 =
1
6
|
18.
379 – 27 =
352
2
|
19.
428 – 247 =
2
181
|
20.
599 + 281 =
2
880
|