Investigations 3 in Number, Data, and Space, Student Activity Book [Grade 5]

NAME ______________________________ DATE _______________

ACTIVITY

Dividing Decimals

In Problems 1–4, circle the correct answer and explain your thinking.

1 121 ÷ 1.1 = 11 110 1,100
2 35 ÷ 0.07 = 5 50 500
3 9 , long division symbol enclosing , 7.2 , end symbol 0.8 8 80
4 28.8 ÷ 24 = 0.12 1.2 12

Solve Problems 5–8 and show your work. Use estimation and number sense to determine the size of the answer.

  • 5 3 , long division symbol enclosing , 45.6 , end symbol

  • 6 140 ÷ 3.5 = _______________

  • 7 97.5 ÷ 6.5 = _______________

  • 8 0 .8 , long division symbol enclosing , 21.52 , end symbol

  • 9 Look at your work for problems 5–8. How is dividing with decimal numbers the same as, or different from, dividing with whole numbers?


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Table of Contents

Investigations 3 in Number, Data, and Space®, Student Activity Book Unit 1 Puzzles, Clusters, and Towers Unit 2 Prisms and Solids Unit 3 Rectangles, Clocks, and Tracks Unit 4 How Many People and Teams? Unit 5 Temperature, Height, and Growth Unit 6 Between 0 and 1 Unit 7 Races, Arrays, and Grids Unit 8 Properties of Polygons