Math

Name: HR: Date:

Tape Diagrams Practice Class Work

( Problem #1 The ratio of boys to girls at a party is 2 to 3. If there are 10 boys then how many girls are there? )

( MA_Ratios_Lesson03_Classwork_mod.doc ) ( Intro to Tape Diagrams )

boys girls

a. What’s wrong with this tape diagram? How can it be fixed?

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b. Circle the correct tape diagram. Put an “X” through the wrong tape diagrams.

c. ( Don’t forget this )Fill in the correct tape diagram and solve the problem.

How many girls are there? girls

2. In a zoo there are 9 monkeys. The ratio of monkeys to zebras is 3 to 1. How many zebras are there?

a. Put the numbers into the tape diagram below.

b. Solve the problem.

Answer: zebras

Complete the tape diagrams. Put numbers in the boxes and for the length of each tape.

3. In a basket, there are 24 sweet oranges and the rest are sour oranges. The ratio of sweet oranges to the sour oranges is 4:1. Find the number of sour oranges.

Answer: _ _

4. The ratio of blue marbles to red marbles in a box is 3 to

2. If there are 12 blue marbles in the box then how many red marbles are there?

Answer: _ _

Try these:

5. Children at recess are either playing or sitting down resting. The ratio of kids playing to resting is 3:1. If there are 8 children resting, then how many children

6. A fruit basket is made with apples and oranges. The ratio of apples to oranges in a fruit basket is 2 to 3. If there are 15 oranges in the basket, then how many

are playing?

Answer: _ _

apples are there?

Answer: _ _