1.
269 + 30 =
2
299
|
2.
930 + 40 =
970
2
|
3.
308 + 70 =
378
2
|
4.
371 – 60 =
311
2
|
5.
856 – 90 =
766
2
|
6.
609 – 80 =
529
2
|
7.
969 – 90 =
879
2
|
8.
411 + 40 =
451
2
|
9.
283 – 70 =
213
2
|
10.
988 – 50 =
2
938
|
11.
807 – 10 =
797
2
|
12.
810 – 30 =
780
2
|
13.
807 – 10 =
797
2
|
14.
435 + 80 =
2
515
|
15.
967 – 90 =
877
2
|
16.
496 – 40 =
2
456
|
17.
450 – 90 =
360
2
|
18.
897 + 70 =
2
967
|
19.
819 – 30 =
789
2
|
20.
153 + 60 =
2
213
|
1.
269 + 30 =
2
299
|
2.
930 + 40 =
970
2
|
3.
308 + 70 =
378
2
|
4.
371 – 60 =
311
2
|
5.
856 – 90 =
766
2
|
6.
609 – 80 =
529
2
|
7.
969 – 90 =
879
2
|
8.
411 + 40 =
451
2
|
9.
283 – 70 =
213
2
|
10.
988 – 50 =
2
938
|
11.
807 – 10 =
797
2
|
12.
810 – 30 =
780
2
|
13.
807 – 10 =
797
2
|
14.
435 + 80 =
2
515
|
15.
967 – 90 =
877
2
|
16.
496 – 40 =
2
456
|
17.
450 – 90 =
360
2
|
18.
897 + 70 =
2
967
|
19.
819 – 30 =
789
2
|
20.
153 + 60 =
2
213
|