Lesson 1

Estimate Quotients

Est. Class Sessions: 2–3
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Mathematical Standards

5.NBT.A
Understand the place value system. (5.NBT.A.1)
5.NBT.B
Perform operations with multi-digit whole numbers and with decimals to hundredths. (5.NBT.B.6)

Standards for Mathematical Practice

MP1.
Make sense of problems and persevere in solving them.
MP2.
Reason quantitatively.
MP4.
Model with mathematics.
MP6.
Attend to precision.
MP8.
Look for and express regularity in repeated reasoning.

Students use their knowledge of division facts to mentally solve division problems with multiples of ten. They model division situations as multiplication problems and vice versa. Students then use the connection between division and multiplication to estimate answers to division problems with one- and two-digit divisors.

Content in this Lesson

  • Estimating quotients for division of multidigit numbers by one-and two-digit numbers [E5].
  • Dividing numbers that are multiples of ten [E6].
  • Representing division problems with situations and pictures.
  • Representing a situation as a division problem.
  • Looking for and expressing regularity in repeated reasoning.
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Materials for Students

Daily Practice and Problems Lesson Homework Assessment

Student Books

 Student Guide
Student Activity Book

Teacher Resources

 Teacher Guide - digital
  • DPP Item A
    Multiplication and Division Facts: Last Six Facts

Supplies for Students

  • calculator

Materials for the Teacher

Assessment in this Lesson

Assessment Expectation Assessed

Estimate Quotients
Check-In: Questions 6–7
Student Guide
Page 296
E5.
Estimate quotients for division of multidigit numbers by one- and two-digit numbers.
E6.
Divide numbers that are multiples of ten.

Estimate Quotients
Check-In: Questions 10–12
Student Guide
Page 296
E5.
Estimate quotients for division of multidigit numbers by one- and two-digit numbers.
E6.
Divide numbers that are multiples of ten.

DPP Item A
Multiplication and Division Facts: Last Six Facts
Teacher Guide - digital
E15.
Demonstrate fluency with the multiplication and division facts for the last six facts (4 × 6, 4 × 7, 4 × 8, 6 × 7, 6 × 8, 7 × 8).

Vocabulary in this Lesson