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Reteach and Skills Practice Workbook

Reteach and Skills Practice Workbook

Reteach and Skills Practice Workbook

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3–3<br />

Name<br />

<strong>Reteach</strong><br />

Problem-Solving Skill<br />

Date<br />

A problem is missing information when you cannot solve it unless<br />

you have more information. A problem has extra information when it<br />

gives more information than needed to solve it.<br />

Missing Information<br />

4MR1.1, 4AF1.1<br />

Chapter Resources<br />

Problem Jack spent 45 minutes on his homework. Jenny started her<br />

homework at 4:00 P.M. Who spent more time doing their homework,<br />

Jack or Jenny?<br />

You cannot solve the problem unless you know when Jenny finished<br />

her homework.<br />

Extra Information<br />

Problem Sue spent 30 minutes raking leaves after school. She spent<br />

20 minutes raking leaves after dinner. She then practiced her violin for<br />

30 minutes. How long did Sue take to rake the leaves?<br />

To solve the problem, you do not need to know how long it took Sue<br />

to practice.<br />

Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.<br />

Choose the correct answer.<br />

The music store is having a sale on CDs. The store also sells videos.<br />

The cost is $15 for 5 CDs. How many CDs can Tyler buy?<br />

1. Which of the following statements is false?<br />

A. There are more than 20 CDs on clearance.<br />

B. It costs $15 for 5 videos.<br />

C. It costs $30 for 10 CDs.<br />

D. One CD on sale costs $3.<br />

2. What information is missing?<br />

F. the cost of each CD<br />

G. what the store sells<br />

H. how much money Tyler has<br />

J. what Tyler wants to buy<br />

1.<br />

2.<br />

Grade 4 41 Chapter 3

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