Decimals Worksheet (Page 4 of 9) in pdf

Decimals Worksheet Page 4

Basic Arithmetic

Lesson 5 – Decimals

As in lesson 1, rounding is used to approximate numbers to a particular place value. The

process of rounding involves choosing a number (to the indicated place value) that is

closest to the number you have. Decimal rounding is similar to whole number rounding,

however, the decimal place values have different names and locations.

Example 3: Round each of the following numbers to the indicated place value.

a. 42.3456 to the nearest tenths place

b. 42.3999 to the nearest hundredths place

c. 42.3456 to the nearest thousandths place

YOU TRY

4a. Write the number 12.619 using words.

____________________________________________________________________

4b. Round 12.699 to the nearest hundredth. ______________________________

4c. What place does the digit 6 occupy in the number 12.619? _________________

CHANGING FROM DECIMALS TO FRACTIONS

Decimals are really fractions in disguise, as you will see in the examples below.

Example 5: Change each of the following to a simplified fraction or mixed number.

a. 0.6

b. 1.15

c. 0.0564

YOU TRY

6. Change each of the following to a simplified fraction or mixed number.

a. 5.375

b. 0.025

Decimals Worksheet Page 4