Reteach and Skills Practice Workbook

Name
Date
14–5
(continued)
4MR1.1, 4NS3.0
Reteach
Problem-Solving Investigation: Choose a Strategy
Step 4 Check
Plan 2 Use the four step plan.
Decide what facts you know. Plan what you
will do and in what order. Use your plan to
solve the problem. Then check your solution
to make sure it makes sense.
Is the solution reasonable?
Reread the problem.
How can you check your answer?
Use any strategy shown below to solve.
,
• Use logical reasoning
• Solve a simpler problem
• Make a model
• Draw a picture
• Look for a pattern
1. Jamie had an aquarium with 8 fish. He had half as many plants,
twice as many small rocks, and a quarter the amount of filters.
How many plants, rocks, and filters did he have?
2. Each morning, Joanna jogs with her dog. They jog for 2 miles and
walk for 1 mile. How many miles do they walk in 1 week? How
many miles do they jog in 10 days?
3. Julio has 4 cats and 2 dogs. How many total legs do his animals
have? How many ears altogether?
4. Martina ran the 100 meter dash in 14.8 seconds and her friend
Sandra ran it in 14.2 seconds. Who won? How much time did she
win by?
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Grade 4 264 Chapter 14