Please get out your homework, a pencil, a scratch piece of paper and clear your desk. Please be ready as soon
as the bell rings. Please put any questions you have on a post-it note and put it on my
desk by the computer.
Place ValueHundreds Tens Ones ● Tenths Hundredths Thousandths Ten-
Thousandths
● 5
● 1 8 9
3 ● 0 7 6
1 2 6 ● 7 8 0 5
1. Five tenths2. One hundred eighty nine thousandths3. Three and seventy six thousandths4. One hundred twenty six and seven thousand eight hundred five ten-
thousandths.
Comparing and Ordering Decimals• To compare decimals you look at the biggest(furthest left)
place value and compare digits going from left to right, just like you read a book.
• Least to greatest means to go from the smallest number to the biggest number.
• Greatest to least means to go from the biggest number to the smallest number.
• Fastest to slowest means to go from least to greatest. Don’t you want to have the smallest time to win a race????
• Slowest to fastest means to go from greatest to least. You don’t want to have the slowest time in a race, do you?
Adding Decimals
• To add decimals you have to line up your decimal point.
• Ex: 1.2 + 12.3= 1.4 + 2.35=1.2 1.40
+12.3 +2.35 13.5 3.75• You add zero’s to the end of your decimal to
make it easier to add, when needed.
Subtracting Decimals
• To subtract decimals you have to line up the decimal point. Then you subtract just like you would as if there were not a decimal.
Ex: 125.23 - 22.11 =125.23 22.11103.12
• You can add zeros as needed just like when you add decimals.
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