So this is such an easy question but they say to change the numbers to make it "friendlier" so like make it easier.
Change 12 X 15 to friendlier numbers, as you saw in the video. Give your answer and explain or show how you got it.
I can't prosses how to do this! I know the answer is 180 but how do I make the problem friendlier?
You should be able to do these problems in your head.
10 * 15 = 150
2 * 15 = 30
@Ms. Sue
Thank you so much!
You're very welcome, Rylie.
To make the problem "friendlier," you can change the numbers in the multiplication problem to ones that are easier to work with mentally. In this case, you can break down the numbers 12 and 15 into friendlier numbers by considering their factors.
The factors of 12 are 1, 2, 3, 4, 6, and 12, while the factors of 15 are 1, 3, 5, and 15. To simplify the problem, you can choose common factors that allow for easier multiplication.
For example, you could rewrite 12 as 3 × 4 and 15 as 3 × 5.
Now, the problem becomes (3 × 4) × (3 × 5), which can be further simplified using the distributive property of multiplication. You can multiply the pairs of numbers inside the parentheses separately, and then multiply the results obtained:
(3 × 4) × (3 × 5) = (12) × (15) = 180
So, by breaking down the original numbers into friendlier factors, such as 3 and 4 for 12, and 3 and 5 for 15, you can simplify the multiplication problem mentally while arriving at the same product of 180.