Lesson: Dividing a Two-Digit Number by a One-Digit Number: Breaking Apart Tens and Ones Mathematics • 4th Grade

In this lesson, we will learn how to divide a two-digit number by a one-digit number by using models and breaking apart the numbers.

Lesson Plan

Students will be able to

Q1:

Divide into 3 groups.

Q2:

We can solve by breaking 39 apart to tens and ones, dividing each part by 3, and adding the partial quotients to find the answer.

What is ?

Q3:

Natalie and Jennifer want to calculate .

Natalie said 32 can be partitioned to 30 and 2 and then the partial quotients can be added.

Who did it correctly?

Use the correct partitioning to find .