math 5 grade
posted by zahra on .
longest multiplication combination for 210

This is the same as finding the prime factors of 210.
2 * 5 * 3 * 7 = 210
http://www.google.com/search?client=safari&rls=en&q=prime+factors+math&ie=UTF8&oe=UTF8 
how did the multiplcatilon combinationos you wrot for 12,18 and 21 help you find some combinonos for 120,180,and 210 give examples.

which x = 300
a 2x30 x6
b 10x6x20
c15x2x10
d 2x3x15 
the answer is a because 6 times 2 eaquals 12 and you times thirty and twelve together and that's how you get 300 the easy way and how you could check if you are correct you could divide three hundred by 12 and you would get your answer. another way you could do it is dividing 300 by 30 ad getting 12 as your answer.

Idk just wanted to post

6 times 2 equals 12

210

Write the longest multiplication combination you found for each of these numbers

I need help