Checkpoint 1 review - 7th grade

integers

100

-20 + 12

-8

200

-25- (-35)

10

300

-25/-5

5

400

- (-6)/ -2

-3

500

-22 x -123

2706

rational numbers add and subtract

100

1/3 + (-2/5)

-1/15

200

What is the distance between 0.75 and - 1/4 on the number line?

1

300

What is the distance between 4/5 and -0.8 on the number line?

1.6

400

-3/5 + 0.25 - 4/5

-23/20 or -1 3/20 or -1.15

500

0.85 + 1/5 - 0.75

0.3 or 3/10

rational numbers multiply and divide

100

3/4 x -16/27

-4/9

200

-2 3/4 x 3 1/2

-9.625 or -9 5/8

300

 -3/25 x -0.8

12/125 or 0.096

400

0.15 x -5/6 x -0.75

3/32

500

-1/6 + 2/8 x 3/4

1/48

square roots

100

square root of 169

13

200

square root of x²

x

300

A square has an area of 361 square feet.  What is the side length?

19 feet

400

A square has an area of 225 square cm.  What is the perimeter of the square?

60 cm

500

I take a number and square it.  Then I take the square root and the result is 12.  What number did I start with?

12

Distributive prop.

100

Simplify 3(4 - 1) 

12-3 or 9

200

0.3(x - 6) = 0.3x - b

What is b?

1.8

300

1/4(0.8 - 1/2)

0.2 - 1/8 or 2/10 - 1/8= 3/40

400

-1/2(0.4 - 1/2)

-0.2 + 1/4 = 0.05

500

-1/3(-1/4 - 1/5)

1/12 + 1/15 = 3/20 or 0.15