ESTIMATION VS. EXACT ANSWERS

Chapter 2

Give Me Your Best Shot!

About how many Jolly Ranchers do you think are

in the container?

What’s Different?

To fill the container, I put two full bags of Jolly Ranchers inside. Each bag

consisted of 32 Jolly Ranchers. How many Jolly Ranchers does the

container hold?

Refreshing our Estimating Skills

1. 392 + 107 = ____?____

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2. 543 + 169 = ____?____

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Ronnie and Sheri went on vacation. During their vacation, Ronnie took 47 pictures and Sheri took 103 pictures. About how many

pictures did Sheri and Ronnie take all together?

• Step One: Estimate or Exact Answer?

• Step Two: Solve.

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Kristy has 124 bouncy balls. Her brother, Franny has 236 bouncy balls. How many bouncy balls do

they have all together?

Step One: Which plan can you use to solve this problem?A. Estimate the sum of 124 and 236B. Add 124 and 236C. Compare 124 and 236

Step Two: How many bouncy balls do they have all together?D. 360E. 300F. 320

Last year the Pittsburgh Pirates won 57 games, and lost 105 games. About how many games

did the Pittsburgh Pirates play last year?

Step One: Estimate or Exact Answer?

Step Two: Solve.

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Mike has 164 red stamps, 193 blue stamps, and 96 green stamps. Does Mike have more

than 900 stamps in all?

Step One: How do we solve the problem?

A. Estimate the sum of 164, 193, and 96 B. Add 164, 193, and 96C. Compare 164, 193, and 96

Step Two: Solve._____________________

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Good Job !!!

Try Again!!!