plus+
minus-
gange x
dividere :
blandt
50

18+2?

= 20

50

4-6?

=2

50

10x3?

=30

50

2:2?

=1

50

1+1-1?

=1

100

1000+565?

=1565

100

22-3?

=19

100

2x4?

=8

100

8:4?

=2

100

8x1+1?

=9

200

222+40?

=262

200

101-78?

=23

200

20x8?

=160

200

20:5?

=4

200

8:1-2?

=6

550

222+40+6+6?

=274

550

301-11?

=290

550

8x15?

=120

550

78:6?

=13

550

15x2-6?

=24

600

110+34+23+800?

=967

600

12000-50?

=1950

600

13x7?

=91

600

1,3:5?

=0,26

600

2x3+1-6+5?

=6