Subtraction within 20 HUGE differentiated first grade math unit that makes subtracting fun with games, worksheets, and activities! This JAM-PACKED unit is filled with 162 pages of everything you need to teach subtraction within 20. This pack covers 5 main standards/concepts: subtraction within 20, number lines (counting back), word problems, backwards doubles, and mixed review (addition/subtraction review).

Get this in the First Grade Math Units 1-9 BUNDLE to save a ton!

**Please click the green PREVIEW button above**

It will show you the table of contents to give you an idea of what is included!

This is everything you need to print and go to teach these concepts to a variety of learners - it will save you so much time! Plus, ALL of your students will be guided into learning and having fun at their own level since everything is already differentiated for you! This pack will make your math planning a breeze!

For my other first grade math units:

First Grade Math Unit 1

First Grade Math Unit 2

First Grade Math Unit 3

First Grade Math Unit 4

First Grade Math Unit 5

First Grade Math Unit 7

First Grade Math Unit 8

First Grade Math Unit 9

You can currently get all of these at a deep discount in the Units 1-9 bundle!!

First Grade Math Units 1-9 BUNDLED

First Grade Math Unit 10

First Grade Math Unit 11

First Grade Math Unit 12

First Grade Math Unit 13

First Grade Math Unit 14

First Grade Math Unit 15

First Grade Math Unit 16

First Grade Math Unit 17

First Grade Math Unit 18

which you can also get for a deep discount in the

First Grade Math Units 10-18 BUNDLE