Harris said that 15 X 9 is equivalent to 45 X 3 because you can multiply one dimension by three and divide the other dimension b
y three. His partner said that only works when you double one number and halve the other. Who is right? Explain.
2 answers:
Answer:
Harris is right.
Step-by-step explanation:
What actually happened was:
Another way to explain this is the associative property of multiplication:
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.
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
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Answer:
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Step-by-step explanation:
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