What is 8.45 to the nearest tenth

8.45 rounded to the nearest tenth is:

8.6 because 5 is equal to 5

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Look at the tenth digit, which is 4. now look at the digit to the right on the tenth digit that's 5. so the rule is if the digit to the right of the place ur rounding to is 4 or less, u round down, if it's 5 or up, round up.
so in this case since there's a 5 u round up.
8.5 is the answer.

Geometric pattern of 2 i’m guessing. not really sure about what you’re asking but i hope this !