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Adding and Subtracting whole numbers with decimals

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TxTeacher1974 TxTeacher1974 is offline
 
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Adding and Subtracting whole numbers with decimals
Old 10-11-2018, 07:57 AM
 
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My students are struggling with remembering to align the decimal points when adding and subtracting whole numbers that contain decimals. Any suggestions?


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Highlight?
Old 10-11-2018, 03:56 PM
 
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I make my kids highlight their decimals by drawing a straight line with the highlighted straight down. It seems to have helped.
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Decimals
Old 10-13-2018, 05:06 PM
 
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I like to use graph paper. I also have students write the first number with decimals. When they write the second number to add or subtract, I like for them to write the decimal first, underneath the previous decimal point, then fill in around the point. This way the decimals are lined up and the graph paper helps to keep numbers in their correct place value.
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Old 10-20-2018, 07:17 PM
 
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I too would have them highlight the decimal point using a straight line.
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