Comparing and Rounding Decimals Christine Berg Edited V

Comparing and Rounding Decimals Christine Berg Edited V Hamilton

Decimal Places ¡ 1000 ¡ 10 ¡ 1 ¡ 0. 01 ¡ 0. 0001 = = = = thousand hundred ten one tenth hundredth thousandth ten-thousandth

Reading Decimals Step 1: Read the number before the decimal point

Reading Decimals Step 2. Read the decimal point as “and”

Reading Decimals Step 3: Read the number after the decimal place

Reading Decimals Step 4: Follow the second number with the place value of the last digit Hint

Reading Decimals Hint. 05 Draw and imaginary line underneath

Reading Decimals Hint . 05 Place a 1 under the decimal Place zeroes under each of the following numbers. 05 100

Reading Decimals . 05 100 is read as five hundredths

Comparing Decimals • Decimal Models • Equivalent Decimals • Number Line

Decimal Models Tenth Hundredth

Equivalent Decimals • Decimals that represent the same value • Example: 0. 6 is equivalent to 0. 60 0. 6 = 0. 60

Terminal Zeroes • Zeroes as last digit(s) of a number can be removed 0. 6 = 0. 60

Equivalent Decimals 0. 60

Comparing Decimals Step 1: Underline the first number that is different in the numbers being compared

Comparing Decimals Step 2: Add terminal zeros so there are the same number of decimal places

Comparing Decimals Step 3: Remove the decimal point

Comparing Decimals Step 4: Order numbers depending on the directions given

Comparing Decimals Step 5: Replace decimal point and remove terminal zeroes

Which is greater: 0. 6 or 0. 58 ?

0. 60 0. 58 0. 6 > 0. 58

Which is greater: 0. 6 or 0. 58 0. 6 0. 58

Rounding Decimals Step 1: Underline decimal place we are rounding

Rounding Decimals Step 2: Circle the number to the right of the underlined decimal place

Rounding Decimals Step 3: If circled digit is greater than or equal to 5, then round the underlined number up (add one)

Rounding Decimals Step 4: If circled digit is less than or equal to 4, leave the underlined number the same

Rounding Decimals Try these: 1)Round 1. 05 to the nearest tenth 2) Round 0. 123 to the nearest tenth

Rounding Decimals Answers: 1) 1. 1 2) 0. 12

In your Own Words Describe what you learned today about either reading OR rounding decimals.