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Practice Workbook SE - East Penn School District

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Name<br />

Problem Solving Skill<br />

Evaluate Reasonableness of Answers<br />

1. Heidi works as a park ranger<br />

giving hiking tours. The trail is<br />

4.3 miles long. If Heidi walks the<br />

trail 15 times each week, which<br />

is a reasonable estimate of the<br />

total number of miles she hikes?<br />

A Heidi hiked 100 miles<br />

B Heidi hiked 60 miles<br />

LESSON 22.6<br />

2. Merrilyn is going to the market<br />

to buy produce. She needs<br />

5 pounds of apples at $0.99 per<br />

pound and 9 pounds of green<br />

beans at $1.29 per pound. Which<br />

is a more reasonable estimate of<br />

how much money she should<br />

bring to the market?<br />

A $14.00<br />

B $32.00<br />

For 3–4, use this information.<br />

Peter is reading the instructions on how to build a<br />

birdhouse. He needs to cut some pieces of wood from a<br />

piece of lumber 100 cm long. The first piece should be<br />

38.9 cm long; the second should be 22.5 cm long.<br />

3. Which is the best estimate for the<br />

combined length of the two<br />

pieces he cuts?<br />

4. Which is the best estimate for the<br />

length of the remaining lumber<br />

after Peter makes the two cuts?<br />

A 70 cm<br />

C 30 cm<br />

F 40 cm<br />

H 15 cm<br />

B 60 cm<br />

D 10 cm<br />

G 20 cm<br />

J 10 cm<br />

Mixed Review<br />

5. 6.<br />

7.<br />

Find the prime<br />

factors of 12.<br />

Write the fact family<br />

for 3, 5, and 15.<br />

List 3 multiples<br />

of 10.<br />

© Harcourt<br />

8. 9. <br />

9<br />

90,005<br />

1 0 3 <br />

5<br />

10. 52<br />

5,842<br />

81<br />

<br />

<br />

PW126<br />

<strong>Practice</strong>

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