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Verdich [7]
3 years ago
14

Explain how to find 40×50 using mental math

Mathematics
2 answers:
lara [203]3 years ago
5 0
Just do 4x5 then add the zeros
umka21 [38]3 years ago
3 0
Think about 40 over 50 and a line separating the answer from the problem like this:

                 40
              x 50
              ---------
                200         0*0=0 5*4= 20 so just put the zero back on the answer and you get 200.

the answer goes under the dotted line
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