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Interactive video lesson plan for: Subtraction-Two shortcuts-Math Tricks

Activity overview:

In this video, I review two different techniques for completing subtraction in your head.
The first math trick is to round the numbers up or down to create numbers easy to add.
Next, you add the numbers it took to round up for the final answer
The other technique is you subtract by adding.
You add to the number you are subtracting from.

Math Tricks Resources

Math Trick Playlist
https://www.youtube.com/playlist?list=PLurjkZV1ykGZL9MlRor-Q9CwHTTnV_bSG

Subtraction Trick - avoid the borrowing! Easy maths lesson
https://www.youtube.com/watch?v=wCw9iuQICy4

Tagged under: mental math,subtraction,subtract head,mental mathsubtraction,mentalmath,mathtrick,subtraction shortcuts math tricks,mathematics,math magic trick,speed maths fast calculation

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