1.
221 + 50 =
2
271
4
3
|
2.
538 + 60 =
598
3
2
4
|
3.
886 – 20 =
2
3
4
866
|
4.
428 + 20 =
448
3
4
2
|
5.
195 – 30 =
2
165
4
3
|
6.
347 + 70 =
3
4
417
2
|
7.
313 + 80 =
393
4
2
3
|
8.
967 – 70 =
2
897
3
4
|
9.
844 – 90 =
4
754
2
3
|
10.
350 + 40 =
2
3
4
390
|
11.
122 + 20 =
3
2
142
4
|
12.
344 – 30 =
2
314
4
3
|
13.
132 + 10 =
3
142
2
4
|
14.
269 + 10 =
2
4
3
279
|
15.
715 – 50 =
2
4
3
665
|
16.
265 – 10 =
4
2
3
255
|
17.
797 – 60 =
4
2
3
737
|
18.
877 + 50 =
4
2
3
927
|
19.
223 – 60 =
2
3
163
4
|
20.
381 + 40 =
421
4
2
3
|
1.
221 + 50 =
2
271
4
3
|
2.
538 + 60 =
598
3
2
4
|
3.
886 – 20 =
2
3
4
866
|
4.
428 + 20 =
448
3
4
2
|
5.
195 – 30 =
2
165
4
3
|
6.
347 + 70 =
3
4
417
2
|
7.
313 + 80 =
393
4
2
3
|
8.
967 – 70 =
2
897
3
4
|
9.
844 – 90 =
4
754
2
3
|
10.
350 + 40 =
2
3
4
390
|
11.
122 + 20 =
3
2
142
4
|
12.
344 – 30 =
2
314
4
3
|
13.
132 + 10 =
3
142
2
4
|
14.
269 + 10 =
2
4
3
279
|
15.
715 – 50 =
2
4
3
665
|
16.
265 – 10 =
4
2
3
255
|
17.
797 – 60 =
4
2
3
737
|
18.
877 + 50 =
4
2
3
927
|
19.
223 – 60 =
2
3
163
4
|
20.
381 + 40 =
421
4
2
3
|