8th grade math problems

distributive property

100

3(4+5)

27

200

2(x+7)

2x+14

300

5(2y-3)

10y-15

400

-4(3-x)

4x-12

500

6(a-2b+1)

6a-12b+6

integer operations

100

-7+4

-3

200

-6+3

-3

300

5-(-4)

5+4=9

400

-7 x -3

21

500

-36 ÷ 6

-6

simplifying like terms

100

3x+4x

7x

200

2(5x-3)

10x-6

300

4(x+2) +3x

7x+8

400

 12x2+8x

4x(3x+2)

500

18x-12x

6x

linear equations

100

x+7=12

5

200

2x-3=11

7

300

5x−4=3x+10

7

400

3(x+2)=21

5

500

21x+3=7

1

area and volume

100

A rectangle is 8 units long and 5 units wide. What is the area?

40 square unites 

200

A triangle has a base of 10 units and a height of 6 units. What is the area?

30 square unites

300

A box is 4 units long, 3 units wide, and 5 units high. What is the volume?

60 cubic unites

400

Lena wants to paint a square table. Each side of the table is 4 feet long. what is the area of the table?

16 square feet 

500

A garden is 5 meters long and 3 meters wide. what is the area of the garden?

15 square feet