Lesson: Subtracting Ones from Two-Digit Numbers without Regrouping Mathematics • 1st Grade

In this lesson, we will learn how to subtract a one-digit number from a two-digit number without crossing a ten and model this with place value equipment.

Lesson Plan

Students will be able to

count back to subtract a one-digit number from a two-digit number without crossing a ten,
subtract one-digit numbers from two-digit numbers using place value blocks,
subtract one-digit numbers from two-digit numbers, recording the calculation in a place value chart,
use place value language to describe subtraction,
solve word problems involving subtraction of one-digit numbers from two-digit numbers without regrouping.

Lesson Video

Lesson Worksheet

Q1:

Use place value to subtract numbers.

Pick the correct way to break apart 47 into tens and ones.

Subtract 5 from 47 by taking away 5 ones.

Q2:

Q3:

Take away 3 from 66.