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Watch the following videos and try them with your class!

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By trying different methods you allow yourself to learn what works best for you. It will allow you to help yourself strengthen the strategies that are harder for you but also allows you to succeed with exploring new strategies.

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Subtraction Strategies and Lessons for First Grade // How to Teach Subtraction within 20

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Learn Subtraction Using Number Line | Mathematics Book B | Periwinkle

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1) 16-8=

2) 10-7=

3) 18-5=

4) 13-6=

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1) 8

2)3

3)13

4)7

Number line section

1) 7

2) 1

3) 8

4) 4

5) 9