1.
650 – 97 =
553
2
|
2.
305 + 616 =
921
2
|
3.
440 + 171 =
2
611
|
4.
869 + 0 =
2
869
|
5.
183 + 524 =
707
2
|
6.
668 – 64 =
2
604
|
7.
605 + 151 =
2
756
|
8.
390 – 291 =
99
2
|
9.
812 – 580 =
2
232
|
10.
920 – 781 =
2
139
|
11.
452 – 101 =
2
351
|
12.
1000 + 0 =
1000
2
|
13.
371 – 278 =
2
93
|
14.
853 + 78 =
2
931
|
15.
358 – 131 =
227
2
|
16.
899 – 345 =
2
554
|
17.
396 – 116 =
2
280
|
18.
298 + 503 =
801
2
|
19.
730 – 42 =
688
2
|
20.
731 + 249 =
980
2
|
1.
650 – 97 =
553
2
|
2.
305 + 616 =
921
2
|
3.
440 + 171 =
2
611
|
4.
869 + 0 =
2
869
|
5.
183 + 524 =
707
2
|
6.
668 – 64 =
2
604
|
7.
605 + 151 =
2
756
|
8.
390 – 291 =
99
2
|
9.
812 – 580 =
2
232
|
10.
920 – 781 =
2
139
|
11.
452 – 101 =
2
351
|
12.
1000 + 0 =
1000
2
|
13.
371 – 278 =
2
93
|
14.
853 + 78 =
2
931
|
15.
358 – 131 =
227
2
|
16.
899 – 345 =
2
554
|
17.
396 – 116 =
2
280
|
18.
298 + 503 =
801
2
|
19.
730 – 42 =
688
2
|
20.
731 + 249 =
980
2
|