Ms. Humphreys 2nd

Rational Numbers

100

Write this fraction as a decimal. 1/4

0.25

200

Write this fraction as a decimal. 13/20

0.65

300

Write this fraction as a decimal. 2/3

0.67

400

Write the decimal as a fraction in simplest form. 0.6

4/5

500

Simplify this fraction. 5/20

1/4

Comparing and Ordering Rational Numbers

100

Compare these fractions. 6/15 and 2/5

equal, less than, or greater than?

6/15 is equal to 2/5

200

Compare these fractions. 2/3 and 16/21

equal, less than, or greater than?

16/21 is greater than 2/3

300

Compare these fractions. -16/9 and -8/3

equal, less than, or greater than?

-16/9 is greater than -8/3

400

Compare these fractions. 1 2/3 and 1 8/12

equal, less than, or greater than?

1 2/3 is equal to 1 8/12

500

Compare these fractions. -3/4 and -9/12

equal, less than, or greater than?

-3/4 is equal to -9/12

Adding and Subtracting integers Numbers

100

Add these decimals. 21.74 + (- 8.27)

13.47

200

Subtract these decimals. 17 - 9.54

7.46

300

Add these decimals. 6.125 - (- 18)

24.125

400

Add these decimals. 4.67 + 29

33.67

500

Subtract these decimals. -5 - (-3.11) =

-1.89

Multiplying Rational Numbers

100

Multiply these -3 x -2

6

200

Multiply these -4 x 6

-24

300

Multiply these -2 x -3 x 2

12

400

Multiply these 12 x -3

-36

500

Multiply these -12 x -25 x -2 x 0

0

Rules

100

neg. x neg. = pos or neg?

pos

200

pos. x neg. = pos or neg?

neg

300

neg plus neg = pos. or neg?

neg.

400

when it is a neg plus a pos the answer depends on what?

the Sign of the absolute value.

500

In multiplying when you have an odd number of negative factors the answer is a?

Negative!