Lesson 2

Using Mental Math to Divide

Est. Class Sessions: 1
X

Mathematical Standards

4.NBT.A
Generalize place value understanding for multi-digit whole numbers. (4.NBT.A.1)
4.NBT.B
Use place value understanding and properties of operations to perform multi-digit arithmetic. (4.NBT.B.6)

Standards for Mathematical Practice

MP1.
Make sense of problems and persevere in solving them.
MP2.
Reason quantitatively.

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 solve division problems with single-digit divisors using mental math strategies.

Content in this Lesson

  • Dividing numbers that are multiples of ten [E6].
  • Representing division problems with situations and pictures [E1].
  • Representing a situation as a division problem [E1].
  • Using mental math and related number sentences to solve division problems [E3].

Daily Practice and Problems C–D

C. Division Practice with Remainders

D. Find the Pattern

X

Materials for Students

Daily Practice and Problems Lesson Homework Assessment

Student Books

 Student Guide
     

Teacher Resources

 Teacher Guide - digital    

Supplies for Students

calculator

Materials for the Teacher

Unit 12 Assessment Record

Assessment in this Lesson

Assessment Expectation Assessed
Using Mental Math to Divide
Check-In: Questions 4–7
with Feedback Box
Student Guide
Page 531
E6.
Divide numbers that are multiples of ten.
Using Mental Math to Divide
Homework Question 7
Student Guide
Page 534
E3.
Show connections between multiplication and division (e.g., fact families, using multiplication to divide).

Vocabulary in this Lesson