comparing and rounding decimals christine berg edited v hamilton
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Comparing and Rounding Decimals
Christine BergEdited V Hamilton
1000 = thousand100 = hundred10 = ten1 = one0.1 = tenth0.01 = hundredth0.001 = thousandth0.0001 = ten-thousandth
Decimal Places
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
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
Reading Decimals
Place a 1 under the decimalPlace zeroes under each of the following numbers
. 05100
. 05 100 is read as five hundredths
Reading Decimals
•Decimal Models•Equivalent Decimals
•Number Line
Comparing Decimals
Tenth Hundredth
Decimal Models
• Decimals that represent the same value
• Example: 0.6 is equivalent to 0.60
0.6 = 0.60
Equivalent Decimals
•Zeroes as last digit(s) of a number can be removed
0.6 = 0.60
Terminal Zeroes
0.6 0.60
Equivalent Decimals
Comparing DecimalsStep 1:
Underline the first number that is different in the numbers being
compared
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
Comparing Decimals
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
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 tenth2) Round 0.123 to the
nearest tenth
Rounding Decimals
Answers:1) 1.1
2) 0.12
Rounding Decimals
Describe what you learned today about
either reading OR rounding decimals.
In your Own Words
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