1. Use the expression 10 x ? where? represents a factor between 1 and 9. What is true about the digit in the ones place of each

Question

2 years ago

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product? Explain.
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1 answer:

marishachu [46] · Answer 1 · 2023-01-08T22:00:40+03:00

We want to study a general product, and find information about the ones place.

We will see that the ones place is always zero.

We have the expression:

10×?

Where ? can be any number between 1 and 9 (only whole ones)

What is true about the digit of the ones place (the first digit at the left of the decimal point) in each product?

Let's give ? some different values and see what happens:

10×1 = 10

10×2 = 20

10×3 = 30

etc...

We can see that the ones place will always be equal to zero.

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