7th Grade Math

Integers

100

20-(-)5=

25

200

34+(-7)=

27

300

-25-(-6)=

-19

400

13+(-50)=

37

500

-30-(-7)+3+(-5)=

-25

Fractions

100

(1/4)+(2/4)=

(3/4)

200

(1/3)-(1/6)=

1/6

300

(3/4)+(2/3)=

17/12 or 1 5/12

400

2+(1/7)=

15/7

500

(1/3)+(-1/9)=

2/9

Decimals

100

.2+.2=

.4

200

.23+.3=

.53

300

.33 X 2

.66

400

0.43 X 0.4=

.172

500

.44/.2=

2.2

One-Step Equations

100

x+2=5

x=3

200

x-3= -3

0

300

0=X+3

X=-3

400

X - (-5)=-10

x=-15

500

X + (-3)=-7

x= -4

Two-Step Equations

100

2X-3=5

X=4

200

3X-(-3)=15

X=4

300

(X/7) + 3 = 4

x=7

400

(X/2) + 7 = 30

X = 46

500

(x/3) - 5 = -11

X = -18