Lesson: Subtracting by Counting Back: Numbers up to 10 Mathematics • 1st Grade

In this lesson, we will learn how to subtract within 10 by counting back from the starting number.

Lesson Plan

Students will be able to

understand how counting back and subtracting are related,
subtracting two numbers within 10 by counting back using number tracks,
subtracting two numbers within 10 by counting back using models (objects and counters),
subtracting two numbers within 10 by counting back without models,
find the missing number in subtraction sentences,
solve story problems involving subtracting two numbers within 10 by counting back.

Q1:

To find 7 take away 4, we can start at 7 and count backward 4.

Finish counting backward to find the answer to 7 take away 4.

Q2:

Complete the following: .

Q3:

Complete the missing values in the figure below from the left to the right.