FRAME NUMBER 9

LEVEL A

RULE NO. 3. To find the value of a ratio, the first term (antecedent) is divided by the second

5

term (consequent). Example: In a ratio

or 5:8, 5 is divided by 8, to obtain the decimal value of .625.

8

Show the decimal value of the following ratios:

b.1

a. 5

c. 4:7

4

8

FRAME NUMBER 22

LEVEL B

A proportion 2 = 4 or 2:4 = 4:8 is verbally expressed 2 is to 4 as 4 is to 8. Then, a proportion

4

8

3 = 6 is verbally expressed:

4

8

FRAME NUMBER 35

LEVEL C

Driving from one town to the next, you get an odometer reading of 6.5 miles. The same route

on a map measures 11.44 inches. What is the scale of the map?

NOTE: 1 mile = 63,360 inches.

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