Lesson: One More and One Less: Numbers up to 20 Mathematics • 1st Grade

In this lesson, we will learn how to find one more or one less than numbers between 10 and 20 by using place value blocks.

Lesson Video

Q1:

What number is one less than ?

Q2:

What number is one more than ?

Q3:

Think about finding one more.

What is one more than 2?

What is one more than 12?

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