Chapter 9

What subtraction strategies can we use to subtract within 20?
 

*In this chapter, children will focus on using different subtraction to find differences with 20 strategies as they explore the Essential Question. They will explore the “make a 10” strategy  using other subtraction facts, using fact families, and finding missing parts of equations by "counting on" a number line to help them develop fluency in subtractions. Children will end the chapter by practicing problem solving by using more than one step to solve word problems.

Tap the picture below to watch a video on "make 10" to subtract.



 

Words we will learn to know:

add
 subtract
fact family
equal sign
true
false

*Go on Freckle Math as often as possible to practice those facts!! 
Click on Freckle below to access Freckle Math:

Class code: auzx8z