Mathnasium 12 S. Hillview Drive, Milpitas CA 95035 (408) 263-0123   milpitas@mathnasium.com

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News from Mathnasium of Milpitas

Math Tricks Mental Math for Advanced Percents

Nov 9, 2021

Do you remember our secret from our first video? Percent means “for each hundred”. If we want to find 12% of 250, we need to find “12 for each hundred“. In this case, we have two hundreds and half of one hundred. So, we count, 12 for the ...

Math Tricks Half of Even Numbers using Mental Math

Nov 9, 2021

The word half should bring to mind the image of two equal parts: “2 parts the same.”   To find half of any amount, cut the whole into “2 parts the same” and take either one. To find half of 6, we cut the whole of 6 circles into “2 parts t...

Math Tricks for Half of Odd Numbers using Mental Math

Nov 9, 2021

Recall that half means “2 parts the same,” “two equal parts.”   Half of 6 circles is 3 because we cut the whole into “2 parts the same” and take one part.   To find half of 7, we bring in one more circle and cut our new whole into “2 p...

Math Tricks for Quartering "four equal parts" Mental Math

Nov 9, 2021

The word quarter means “4 parts the same,” “four equal parts”.   To find a quarter of any amount, cut the whole into “4 parts the same” and take any one part. The trick to doing this easily is to “cut it in half and then cut the half in half...

Math Tricks Addition Mental Math

Nov 9, 2021

Here is a number sense trick to help you calculate addition using mental math.   We want to find the sum of 9 + 8 + 7. Using our number sense, we turn to “friendly numbers” such as 10 or multiples of 10, to help make this math easier to work...

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