Asked by Juhee

What multiplication fact can be found by using the arrays for 2 times 9 and 5 times 9?
Answered by Ms. Sue
I don't know if this is what you're looking for -- but the digits in the product of any number multiplied by 9 will add up to 9.

Examples:
2 * 9 = 18
5 * 9 = 45
245 * 9 = 2205