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Reteach and Skills Practice Workbook

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16–5<br />

Name<br />

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

(continued)<br />

Date<br />

4MR1.1, 4NS3.0<br />

Problem-Solving Investigation<br />

Step 4<br />

Check<br />

Is the solution reasonable?<br />

Reread the problem.<br />

How can you check your answer?<br />

Solve using any strategy shown below.<br />

• Use logical reasoning<br />

• Work backward<br />

• Make a model<br />

• Make an organized list<br />

• Draw a picture<br />

1. Jen has 12 juice boxes in a case. She needs 96 boxes for a school<br />

picnic. How many cases will she need to bring?<br />

2. Marsha rides her horse 3 times a week for 2 hours at a time. How<br />

many hours does she ride her horse in 2 weeks? 3 weeks?<br />

3. Nicholas bought 4 hamburgers <strong>and</strong> 2 salads. He gave the cashier<br />

2 ten-dollar bills. If he received $1.98 back, how much did he pay<br />

for the food?<br />

4. Collin packed s<strong>and</strong>wiches for a field trip lunch. He had 12 turkey,<br />

10 peanut butter, <strong>and</strong> 15 ham. Nine of the children brought their<br />

own s<strong>and</strong>wiches, so how many total children went on the field<br />

trip?<br />

5. For your birthday, your parents bought you a bicycle for $89.49<br />

<strong>and</strong> a new coat for $155.25. If they still have $69.98 left, how<br />

much money did they start out with?<br />

6. Juanita made a science fair display with a spider web that spanned<br />

a 6-foot by 4-foot area. If she placed 10 spiders in each square<br />

foot, how many spiders were there?<br />

7. Olivia weighs three times as much as her younger brother, Ricardo,<br />

<strong>and</strong> is seventeen years older. Ricardo is 4-years-old <strong>and</strong> weighs 2<br />

times the amount of his sister’s age. How old is Olivia? How much<br />

does each sibling weigh? The weight is in pounds.<br />

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

Grade 4 298 Chapter 16

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