matematik

procent

100

1/2

50%

200

1/4

25%

300

1/3

33,33%

400

1/6

16,66%

500

3/8

37,5%

brøk

100

1/2+1/2

1

200

1/4+2/4

3/4

300

78/100+12/100

90/100

400

4/7+2/5

34/35

500

12/15+2/3

22/15

gange

100

7*7

49

200

7*6

42

300

155*23

3565

400

3,1*1,3

4,03

500

1689*67

113163

plus og minus

100

23+42=

65

200

56-42

14

300

53+23-36

40

400

12+(20-6)

26

500

36+(56-35)

57

ligning

100

3+x=6

x=3

200

36-x=30

x=6

300

3x+3=15

x=4

400

3x-9=6

x=5

500

4x-7=3x-11

x=-4