Reteach and Skills Practice Workbook

13–6
Name
Skills Practice
Problem-Solving Investigation
Use any strategy shown below to solve.
• Guess and check.
• Look for a pattern.
• Solve a simpler problem.
Date
• Use logical reasoning.
• Draw a picture.
4MR2.2, 4NS1.7
Chapter Resources
Solve.
1. There are 32 rides at an amusement park. Norman goes on 3 __
8
of
the rides. How many rides does he go on?
2. Donna went on 18 rides over 3 hours. If she spent half her time
on 1 __
3
of the rides, on how many rides did she spend the last half
of her time?
Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
3. Ashley puts 45 stamps in an album. She puts the same number
of stamps on each page, and 3 stamps on the last page. There are
2 more pages in the album than the number of stamps on each
page. How many pages are in the album? How many stamps are
on each page?
4. The orchestra is composed of 54 students. One third of the
students play string instruments. Nine students play percussion.
If one more student plays a woodwind instrument than a brass
instrument, how many students play each instrument?
5. Molly’s uncle is cooking a 7-pound beef roast for dinner. It takes
25 minutes per pound to cook. What time should Molly’s uncle
begin cooking the roast if he wants to serve dinner at 7 P.M.?
6. Marcus exercises for 45 minutes 4 times a week. During a 10-
week period, he had a cold one week and did not get to exercise.
How many total minutes did Marcus spend exercising during this
10-week period?
Grade 4 245 Chapter 13