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How do you use mental math to find the sum #74+2.6+1.4#?

Answer 1

Eva Adamson

First in your head, I would add all of the one's to 74.

Next I would add the tenths to the previous result I got.

First in your head, I would add all of the one's to 74.

Next I would add the tenths to the previous result I got.

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Answer 2

Genesis Allen

To find the sum of 74 + 2.6 + 1.4 using mental math, you can add the whole numbers together first, which gives you 75. Then, add the decimal numbers together, which equals 4.0. Finally, add the whole number sum and the decimal sum together to get the final result, which is 79.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.