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4 votes
Explain how to find 40x50 using mental math

2 Answers

3 votes

First, do 4*5=20

Then, add two zeros...

So the answer is 2000

User Rick Mohr
by
7.5k points
3 votes
Bscically DO 4x5 which is 20
NEXT add the two zeros
NOW you have 2,000
40x50=2,000
User Tanasis
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7.2k points