|
1.
54 + 257 =
2
311
4
3
|
2.
853 – 285 =
2
3
568
4
|
3.
400 + 538 =
3
4
2
938
|
4.
66 – 44 =
2
3
22
4
|
|
5.
231 – 152 =
4
3
2
79
|
6.
607 + 173 =
780
3
4
2
|
7.
895 + 86 =
981
2
3
4
|
8.
265 + 62 =
4
2
327
3
|
|
9.
915 – 41 =
2
4
3
874
|
10.
955 + 28 =
3
2
4
983
|
11.
881 + 54 =
2
4
3
935
|
12.
507 + 352 =
4
859
2
3
|
|
13.
596 + 115 =
2
3
711
4
|
14.
47 + 109 =
4
3
2
156
|
15.
687 + 58 =
745
4
2
3
|
16.
225 + 445 =
670
2
3
4
|
|
17.
728 + 21 =
3
2
749
4
|
18.
510 – 19 =
3
491
4
2
|
19.
881 + 74 =
4
2
3
955
|
20.
450 – 103 =
4
3
347
2
|
|
1.
54 + 257 =
2
311
4
3
|
2.
853 – 285 =
2
3
568
4
|
3.
400 + 538 =
3
4
2
938
|
4.
66 – 44 =
2
3
22
4
|
|
5.
231 – 152 =
4
3
2
79
|
6.
607 + 173 =
780
3
4
2
|
7.
895 + 86 =
981
2
3
4
|
8.
265 + 62 =
4
2
327
3
|
|
9.
915 – 41 =
2
4
3
874
|
10.
955 + 28 =
3
2
4
983
|
11.
881 + 54 =
2
4
3
935
|
12.
507 + 352 =
4
859
2
3
|
|
13.
596 + 115 =
2
3
711
4
|
14.
47 + 109 =
4
3
2
156
|
15.
687 + 58 =
745
4
2
3
|
16.
225 + 445 =
670
2
3
4
|
|
17.
728 + 21 =
3
2
749
4
|
18.
510 – 19 =
3
491
4
2
|
19.
881 + 74 =
4
2
3
955
|
20.
450 – 103 =
4
3
347
2
|