Math Problem Statement

Mr. Johnson buys 5 bottles of lemonade for the school picnic. He buys four 28- ounce bottles and one 64-ounce bottle. Using rounding to the nearest ten, about how much lemonade does Mr. Johnson buy in all?

Solution

To determine the approximate amount of lemonade Mr. Johnson buys, we need to:

  1. Add the total amount of lemonade from all the bottles.
  2. Round the total to the nearest ten.

Step 1: Find the total amount of lemonade

  • Four 28-ounce bottles = 4×28=1124 \times 28 = 112 ounces
  • One

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Math Problem Analysis

Mathematical Concepts

Addition
Rounding to the nearest ten

Formulas

Total ounces = (number of bottles) x (ounces per bottle)
Rounding rule: if the digit is 5 or more, round up

Theorems

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Suitable Grade Level

Grades 3-5

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