Number Sense Math Part 2 (Subtraction)

Nov 10, 2021 | Yukon

Part 2 of our Number Sense #MathTricks on Facebook. Be sure to follow us on Facebook for additional math tricks to help you become a master at mental math! After watching our video, use the material below to get in some extra practice.

Last week, we learned about using multiple of 10s to add multiple numbers quickly. Well this week we're taking that math trick to the next level by taking on subtraction! For subtraction, we have 2 different methods. The first is thinking "how far apart" two numbers are by starting with the smaller number and counting up using our "friendly numbers" (multiples of 10) to help. This method is useful for numbers that are fairly close together. The second method is "taking away" friendly numbers. Both these methods are great at making mental math easy! Be sure to practice with the worksheet below.

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Number Sense Math Part 2 (Subtraction)

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