Common - Bridge Maths ::Subtraction

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[Author - Kripa S]

Objective: Revisit subtraction of numbers upto 3 digits, give one below the other

Subtopics to be covered:

1. Subtraction of numbers without borrowing (big number minus small number at each place value)
2. Subtraction of 2 digit numbers with borrowing (at units place, small digit minus bigger digit)
3. Subtraction of 3 digit numbers with borrowing (at units or ten's place, small digit minus bigger digit)

Learning Outcome:

1. Students can subtract two given numbers placed vertically

[Author - Kripa S]

https://www.youtube.com/watch?v=Fe8u2I3vmHU (Addition)

[Author - Kripa S]

https://www.coolmath4kids.com/sites/default/files/addition01-03.gif (adding objects)

https://www.bforball.com/image/3+2=6.png (add with carry over)

[Author - Kripa S]

http://www.math-aids.com/Addition/Addition_Worksheets_MVNR.html

[Author - Kripa S]

https://drive.google.com/open?id=0B4m07xnDF8JpV3pyeDdLMXprSGM (answerkey 1)

https://drive.google.com/open?id=0B4m07xnDF8JpSXFfQmRsVlU5WGc (answerkey 2)

https://drive.google.com/open?id=0B4m07xnDF8JpMmpSQmx0MmpEZUE (answerkey 3)

[Author - Kripa S]

https://drive.google.com/open?id=0B4m07xnDF8JpRm5LamJsVGFtOGs (worksheet 1) https://drive.google.com/open?id=0B4m07xnDF8JpM0EwNlBmOG9RdHM (worksheet 2) https://drive.google.com/open?id=0B4m07xnDF8JpdDBvTG1fSFdZRTg (worksheet 3)

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