Mathematics Wonderland

Integers

3

(-10)+(-15)

-25

5

(-10)+15

5

10

-16=-4-p

p=12

15

-3x-4(4x-8)=3(-8x-1)

x=-7

20

2/3(13-2(50/24-n))+7=9

14

Fractions

3

2/5+5/12

=49/60

5

7/10-1/6

=32/60=8/15

10

3/7*8/13

=24/91

15

7/16 / 3/8

=7/6

20

7/13 / 9/16

=112/117

Decimals

3

1.5-1.32

=0.18

5

5.12*6.18

31.6416

10

82.6/5

16.52

15

528.6948+32.5874

561.2822

20

0.357853-0.49761

=-0.139757

Inequalities

3

x/-2<14

= x>-28

5

-1.5x<3

=x>-2

10

2x+5>3

= x>-1

15

x/-3>2

= x<-6

20

-2<x+4<7

= -6<x

Solve Equations

3

n-6=-12

= n=-6

5

n-7=-14

= n=21

10

-x/2=6

= x=-12

15

x/-4=12

= x=-48

20

3(4x-3)=-33

= x=-2