Rounding Decimals Step By Lesson 17345

User Manual: 17345

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Rounding Decimals Step By Step Lesson

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Problem #1 - Round 4.285 to the nearest whole number.

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Problem #2 - Round 39.17345 to the nearest ten-thousandths place.

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Problem #1 Explained:

Rounding to the nearest whole number is the same thing as rounding

to the nearest ones place. When we want to round anything we look at

the place value the are asking us to round to first. In this case, the

ones place.

ones place

4.285

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The digit to the right of that place value determines if the ones place

value rounds up or stays the same. If the digit to the right is 5 or

greater, we round the number up. If the digit is 4 or less, the number

stays the same.

place to the right

4.285

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The value (2) is 4 or less this means that the ones places stays the

same and remove all remaining digits behind in. 4.285

4.285 round to the nearest whole number is 4.

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Problem #2 Explained:

Step 1) Identify the place value they are asking about.

3 9 . 1 7 3 4 5

Tens

Ones

Tenths

Hundredths

Thousandths

Ten- Thousandths

Hundred-

Thousandths

Step 2) We look at the place value to the right of the ten-thousandths.

If it is 5 or greater, we round up. Otherwise, the ten-thousandths place

stays the same.

3 9 . 1 7 3 4 5

Tens

Ones

Tenths

Hundredths

Thousandths

Ten- Thousandths

Hundred-

Thousandths

The value is 5, so we round up and remove all decimals behind that

place.

39.17345 = 39.1735