Pencil Blank paper Calculator Textbook Homework folder ON YOUR DESK…

1.1, , , , , , , , , $ $ $ $ $ $ $ $ $ $ $50.00 ROUNDING NUMBERS TO THE THOUSANDS PAGE 11 (1-27)

21.$ $ $ $ , , ,000 HOMEWORK ANSWERS CONTINUED

Lesson 5

REVIEW

Work in your group to solve this problem: The mayor of Castle Rock has asked this class to estimate the number of food and drink items that the food committee should order for a city-wide picnic. 960 people are expected to attend. Each person will need: 1 hamburger 20 French fries 1 cup of fruit 2 servings of cold drinks 3 cookies Estimate the number of serving of each item. GROUP WARM-UP

About 1,000 people will attend, so the mayor needs approximately: 1,000 hamburgers 20,000 French fries 1,000 cups of fruit 2,000 drinks 3,000 cookies SOLUTION

WHAT IS THE RULE FOR ROUNDING?

, ,500-5,499 WHAT RANGE OF NUMBERS?

NUMBER LINE

Turn to Lesson 5 in your textbook. The process of rounding is the same, no matter how large the number. What is the rounding rule? REVIEW

Complete page 13 Practice (1-14) on your lined paper. Check that your paper follows Mrs. Bass’s standard. Standard for Student Work: 1.Name and date in the upper right hand corner 2.Title of the assignment 3.Page number and problem numbers are listed beneath title 4.Holes are on the left side 5.Work is neat and uses the lines properly INDEPENDENT/GROUP WORK

A range of numbers is the least number possible through the greatest number possible. The range of ages in our classroom is from From the rounded numbers for hamburgers, drinks, and desserts needed for the mayor’s picnic, determine the range from which each number could have come. Find the greatest and least sum of the three numbers. You may use your calculator. Turn this into the bottom turn in shelf on Mrs. Bass’s desk on a separate sheet of paper for Extra Credit points. EXTRA CREDIT