NAME ______________________________ DATE _______________

DAILY PRACTICE

Making Estimates

Estimate the product or quotient.

  • 1 Problem: 34 × 62

    30 × 62 = _______________

  • 2 Problem: 843 ÷ 8

    840 ÷ 8 = _______________

  • 3 Problem: 79 × 61

    80 × 61 = _______________

  • 4 Problem: 2,764 ÷ 7

    2,800 ÷ 7 = _______________

  • 5 Problem: 29 × 58

    30 × 60 = _______________

  • 6 Problem: 719 ÷ 19

    720 ÷ 20 = _______________

  • 7 Problem: 32 × 418

    32 × 400 = _______________

  • 8 Problem: 463 ÷ 82

    480 ÷ 80 = _______________

  • 9 Problem: 673 × 76

    700 × 80 = _______________

  • 10 Problem: 3,128 ÷ 64

    3,000 ÷ 60 = _______________

NOTE

Students use multiples of 10, familiar combinations, and doubling strategies to estimate the solutions of more difficult multiplication and division problems.

MWI Multiplication Strategies; Division Strategies


End ofPage 249

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