Lesson: Subtracting Two-Digit Numbers with Regrouping Mathematics • 1st Grade

In this lesson, we will learn how to subtract a two-digit number from a two-digit number when crossing a ten and model this with place value equipment.

Lesson Plan

Students will be able to

identify differences that will involve regrouping,
use place value models to regroup tens to subtract 2 two-digit numbers,
model given subtraction problems with place value blocks,
draw models to subtract 2 two-digit numbers.

Lesson Worksheet

Q1:

Calculate .

Hint: Use place value blocks to help you.

Q2:

Place value blocks can help us subtract when we have to regroup a ten.

Use place value blocks to find .

Q3:

Place value blocks can help us subtract when we have to regroup a ten.

Use place value blocks to find .