## 100 Grid Challenge.docx - Section 2: Introducing 100 Grid Challenge

100 Grid Challenge.docx

# Using the Number Grid to Add or Subtract Ten

Unit 12: The Ten Concept: Counting On and Off the Decade and Knowing 10 More/ 10 Less
Lesson 3 of 9

## Objective: SWBAT add or subtract ten to/from a 2 digit number.

### Thomas Young

203 Lessons14 new

## Big Idea: The Number Grid Challenge. Students will play a game that requires them to add or subtract ten from a number using the number grid. They will record their results using standard notation.

Print Lesson
14 teachers like this lesson
Standards:
Subject(s):
Math, Number Sense and Operations, 1st Grade, adding ten, subtracting ten, counting by 10
70 minutes

### Thomas Young

203 Lessons | 14 new

##### Similar Lessons

###### Identify Related Facts - Day 1 of 2
1st Grade Math » Single Digit Addition and Subtraction
Big Idea: It's all in the family! In this lesson, students will begin to identify and understand the relationship between addition and subtraction sentences.
Favorites(32)
Resources(12)
Lakeland, FL
Environment: Urban

###### Crayon Box Combinations
1st Grade Math » Properties of Addition and Subtraction
Big Idea: Students think deeply about how to make 9 using different combinations of red and blue crayons. This builds number sense and sets them up for later math fact fluency!
Favorites(8)
Resources(15)
New Orleans, LA
Environment: Urban