Show:
simplifying algebraic expressions
dividing with fractions
calculating percentage
PEMDAS
100

Simplify

10x - 5x + 4

5x + 4

100

1/4 div 3

1/12

100

50% of 80

40

100

9-7xx8

-47

200

Simplify

4(x+8)

4x+32

200

3/8 div 2

3/16

200

25% of 40

10

200

46xx10-4^2

476

300

Simplify

7x-6-5x

2x-6

300

12 div 1/3

36

300

40% of 30

12

300

8xx5+(30-4)

66

400

Simplify

7(3x+2)+1

21x+15

400

1/2 div 7

1/14

400

10% of 68

6.8 or 

6 4/5

400

24 div (3xx4) + 6^2

38

500

Simplify

9x+6(x-2)

15x-12

500

8 div 2/3

12

500

20% of 85

17

500

45+6xx2^3-(3+5)

85