Scales and Rates
Profound Proportions
Nosy Negatives 1
Nosy Negatives 2
Devious Decimals
100

SHOW WORK 

33 meters

100

What two qualities must graphs of proportions have?

Straight line through origin

100

What will the sign of the product (multiplying) of two negative numbers be? Write it out completely.

Positive

100

Why is 1/3 a rational number?

The same number repeats forever. Irrational numbers do not repeat the same number, but continue forever

100

What are the two types of decimals?

Terminating and repeating

200

Find miles per hour: 1/4 mi in 1/12 hr

Keep, change, flip; answer = 3 mi/hr

200

Fill in the blank: A proportional relationship means that one quantity ______ on another quantity and changes at a ______ rate.

depends on; constant rate

200

Solve: -15.7 + -29.8

-45.5

200

Solve: -18.3 - 42.9

-61.2

200

Change 5/8 to a decimal

0.625

300

Solve 

1/4

300

A trucker drives 240 miles in 3 hours. Find the constant of proportionality (unit rate) to write an equation showing his total distance based on hours driving at that speed.

distance = 80 x hours

300

Solve: -16.5 x -8.2

135.3

300

-423 / -9

47

300

Change to a decimal

4 12/20

4.6

400

Solve: -465 / 5

-93

400

72.6 x -5.3

-384.78

400

Show work! Which is the greater number? -2.76 or

-2 3/5

-2 3/5 is the same as -2.6 which is greater since it is closer to 0.

500

Solve: 

6.2 * -7 3/8

-45.725

500

Solve: 

-18.76 + 93 6/8

74.99

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