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Multiplication of large numbers

Directions: Use the digits 1 to 9, at most one time each, to create two numbers that have a product as close to 500,000 as possible. NOTE: You may use any length of factors as you would need. Ex 8 digit by 1 digit. 4 digit by 3 digit.

Hint

Hint

What can you estimate to get close to 500,000?
How many digits did you use?

Answer

Answer

947 x 528= 500,016

Source: Miles Knight

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2 comments

  1. One of my 5th grade students came up with this one:
    731 x 684 = 500,004
    She is very, very excited!!

  2. Can we use decimals?

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