Answer:
Harris is right
Step-by-step explanation:
The factors in a product can be grouped any way you like. That is the meaning of the associative property of multiplication.
15×9 = 15×(3×3) = (15×3)×3 = 45×3
Answer:
Harris is right.
Step-by-step explanation:
[tex]15\times 9 = 45\times 3 = 135[/tex]
What actually happened was:
[tex]15\times 3 = (15\times 3)\times (9 \div 3) = 135[/tex]
Another way to explain this is the associative property of multiplication:
[tex](a\times b)\times c = a\times (b\times c)[/tex]
This is also possible when we multiply one dimension by 2 and divide the other by 2.
But, it is true for all numbers.
If we multiply one dimension by n and divide the other by n, the anser remain the same.
[tex]x\times y = (x\times n)\times \displaystyle\frac{y}{n} = xy[/tex]
