3 years ago

Explain how you can use mental math to solve 30 x 80?

Mathematics

1 answer:

OlgaM077 [116]3 years ago

7 0

Answer:

it equal 2400

but in an easier and a faster u can just

do 30

x80

------

hide number 8 put down the zero then hide the zero in the 80 and multiply normaly

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Answer:

Japan - $21.95

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Step-by-step explanation:

Let the cost of movies in Japan be x and the cost of movies in Switzerland be y. We can write two equations that relate x to y. If we have two equations and two unknowns we can solve for x and y.

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