We can quickly add numbers using mental math by starting with the first addend, and counting up by adding each place value of the other addend.
Try to add a group of numbers without paper and pencil by using this method.
Whether working as a cashier, trying to pass the G.E.D., or just wanting to add quickly, this video and the linked videos below will help you.

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3rd Grade Math 1.4, Mental Math Strategies for Addition
   • 3rd Grade Math 1.4, Mental Math Strat...  


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