Lesson: Adding on a Number Line to Subtract Numbers up to 100 Mathematics • 2nd Grade

In this lesson, we will learn how to add on a blank number line to subtract within 100.

Lesson Plan

Students will be able to

count forward along a number line (from the subtrahend to the minuend) to find the difference between two numbers,
use partitioning to help subtract across a 10,
apply knowledge of subtracting using a number line when solving word problems.

Q1:

Use the number line to find the difference between 95 and 75.

Q2:

Liam has a collection of 55 toy cars. His brother, Benjamin, has 35 toy cars. How many more toy cars does Liam have than Benjamin?

Q3:

Anthony got 45 marks on the test and his brother got 25 marks. How many more marks did Anthony get than his brother?