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Chapter 3 L3-3 Notes: Rounding Decimals

Chapter 3 L3-3 Notes: Rounding Decimals. To round a decimal, first underline the digit to be rounded. Then look at the digit to the right of the place

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Page 1: Chapter 3 L3-3 Notes: Rounding Decimals. To round a decimal, first underline the digit to be rounded. Then look at the digit to the right of the place

Chapter 3

L3-3 Notes:

Rounding Decimals

Page 2: Chapter 3 L3-3 Notes: Rounding Decimals. To round a decimal, first underline the digit to be rounded. Then look at the digit to the right of the place

Rounding Decimals

To round a decimal, first underline the digit to be rounded. Then look at the digit to the right of the place being rounded.

If the number is 5 or above, give the number underlined a shove.

If the number is 4 or below, leave the number underlined alone.

Page 3: Chapter 3 L3-3 Notes: Rounding Decimals. To round a decimal, first underline the digit to be rounded. Then look at the digit to the right of the place

Rounding Decimals

Round 1.324 to the nearest whole number.

1.324

Round 99.96 to the nearest tenth.

99.96

Page 4: Chapter 3 L3-3 Notes: Rounding Decimals. To round a decimal, first underline the digit to be rounded. Then look at the digit to the right of the place

Examples

1. A bag of potato chips costs $0.2572 per ounce. How much is this to the nearest cent?

Page 5: Chapter 3 L3-3 Notes: Rounding Decimals. To round a decimal, first underline the digit to be rounded. Then look at the digit to the right of the place

How Much Does Gas Really Cost?

Round the gas prices to the nearest cent.

REGULAR

PLUS

PREMIUM

Page 6: Chapter 3 L3-3 Notes: Rounding Decimals. To round a decimal, first underline the digit to be rounded. Then look at the digit to the right of the place

On Your Own…

Round each decimal to the indicated place-value.

1. 0.329; tenths

2. 45.522; hundredths

3. 7.67597; ten thousandths

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