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?

How many digits did you use?

### Answer

### Answer

947 x 528= 500,016

Source: Miles Knight

One of my 5th grade students came up with this one:

731 x 684 = 500,004

She is very, very excited!!

Can we use decimals?

My student also got 500,004 by multiplying 684 by 713!

My student got 500,000!!!!

7812.5×64

No where does it say you can’t use decimals. He talked me through his thinking and it was brilliant. I was so excited and I’ve never seen him with a smile that big before.

I got 499993.6.

7812.4×64