Ch. 1 & Ch. 2 Essentials Review

Adding & Review

100

-3/5 + -4/5

 - 7/5

200

- 7.2 + 4.5

- 2.7

300

 what is the absolute value of  -10?   l-10l

10

400

How do you find the sum of numbers with different signs

Subtract and take the sign of the bigger number

500

-16+18+-17

-15

Subtracting

100

-4 - 6

-10

200

2 - (-7)

9

300

15 - (-7)

22

400

-8.83 - (-6.82)

-2.01

500

- 2 3/4 - (- 1/4)

-2 2/4 or -2 1/2 or -2.5 or -5/2 are all acceptable answers

Mix

100

-2 - 3

-5

200

-10 + -30

- 40

300

21 - (+5)

16

400

Subtracting a negative is the same thing as...

Adding a positive

500

-10 + (-2) - 5

-17

Converting Fractions and Decimals

100

turn 1/2 into a decimal

0.5

200

Write fraction as a decimal: 30/8

3.75

300

write 0.7 as a fraction

7/10

400

write decimal as a fraction in simplest form:

-0.28

- 7/25

500

Turn into a fraction in simplest form .252

63/250

Multiplication & Division

100

4(5)

20

200

8(-4)

-32

300

divide -25/-5

5

400

divide 3.3/(-2.5)

-1.32

500

-7 x 5 x -2

70