Addisjon
245+378
623
523−178
345
6×7
42
45:5
9
1/2
50%
1234+876
2110
1245−876
369
6×8
48
81:9
9
1/4
25%
45,7+32,8
78,5
78,4−32,7
45,7
9×6
54
48: =6
8
3/5
60%
12,34+8,76
21,10
21,56−8,73
12,83
12×9
108
124:4
31
7/10
70%
3,456+12,7
16,156
16,345−3,7
12,645
53×7
371
144:6
24
6/8
75%