# Using Friendly Numbers when Adding more than 2 numbers Combining Doubles - Lesson for Grade 1, Chapter - Make it Easy Strategies

In this lesson, titled "Using Friendly Numbers when Adding More Than 2 Numbers & Combining Doubles," Grade 1 students will dive into the "Make it Easy Strategies" chapter, focusing on "Applications in Operations Within 100. " This lesson is designed to enhance their numerical fluency by introducing them to the concept of friendly numbers and the strategy of combining doubles for efficient problem-solving.

Students will engage in various activities including the "Friendly Doubles Worksheet," "Using Number Sentences to Solve Problems Worksheet," and the "Friendly Numbers Worksheet. " These hands-on activities are crafted to reinforce their understanding of how to identify and use friendly numbers—numbers that are easy to work with mentally, such as multiples of 10—and how combining doubles (adding two of the same number) can simplify the process of adding more than two numbers.

Moreover, through the "Mental Strategy of Counting," "Friendly Numbers: Making a Ten," and "Doubles, and Both in One" exercises, students will develop critical thinking and mental math skills, enabling them to solve addition problems more efficiently.

Estimated classroom time: 13 min
Chapter: Make it Easy Strategies
Unit: Applications in Operations Within 100
Click on any activity below to start learning.
1st
3:00 min
Friendly Doubles Worksheet
worksheet
2nd
3:00 min
Using Number Sentences to Solve Problems Worksheet
worksheet
3rd
3:00 min
Friendly Numbers Worksheet
worksheet
4th
4:00 min
Mental Strategy of Counting, Friendly Numbers: Making a Ten, Doubles, and Both in One
Quiz
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• ### Activity 1 / Friendly Doubles Worksheet

Learning and committing doubles facts to memory is a skill that makes math computation easy and efficient. It also helps with adding and subtracting larger numbers. Kids will love this brightly colored and animated worksheet, as it will help them learn how to use doubles facts to answer basic addition problems with three addends. They'll see how quickly they can compute when they put the power of doubles to work!

• ### Activity 2 / Using Number Sentences to Solve Problems Worksheet

When it comes to solving math problems, it's all about efficient strategy. For young mathematicians, picture representation can help them solve basic addition problems, particularly when it involves repeated addends like this fun worksheet does. As your math whiz gains confidence, they'll incorporate those number sentence solving abilities for higher-level addition equations.