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People's Education High School Mathematics Edition B Compulsory Course 2
Beijing Normal University Edition Fifth Grade Mathematics Volume 2
Hebei Education Edition Fourth Grade Mathematics Volume 2
People's Education Press First Grade Mathematics Volume 2
Qingdao Edition Seventh Grade Mathematics Volume 2
Category | Format | Size |
---|---|---|
Mathematics Volume 2 for Grade 4 of Beijing Normal University | pptx | 6 MB |
Description
"Weight Measurement" PPT courseware on the meaning of decimals and addition and subtraction
Decimal subtraction
Use the vertical form to calculate the subtraction of abdicated decimals, align the decimal points, and subtract from the last digit. If the minuend does not have enough decimal places, you can add "0" at the end of the decimal and then subtract. If the number in any digit is not enough to subtract, borrow 1 from the previous digit, add 10 to this digit, and then subtract. Finally, align the decimal point above the horizontal line in the resulting number and click on the decimal point.
The price of a pen is 12.50 yuan and the price of a diary is 2.95 yuan. How much does it cost to buy a pen and a diary?
12.50 + 2.95 =
Carry addition of decimals
Calculate the carry addition of decimals, align the decimal points, and add from the last digit. If the numbers in any digit add up to 10, advance 1 to the previous digit. Finally, align the decimal point above the horizontal line in the resulting number and click on the decimal point.
Calculate decimal subtraction by aligning the decimal points and subtracting from the last digit. If there are not enough digits at the end of the decimal of the minuend, you can add "0" and then subtract. If the number in which digit is not enough to subtract, you need to move back 1 from the previous digit, add ten to the original digit and then subtract.
When calculating decimal carry addition, align the decimal points and add from the last digit. Whichever digit adds up to 10, advance 1 to the previous digit. Finally, align the decimal point above the horizontal line in the resulting number and click on the decimal point.
Keywords: Weighing and weighing courseware PPT, Beijing Normal University edition fourth grade mathematics volume PPT courseware download, fourth grade mathematics slide courseware download, weighing and weighing PPT courseware download, .PPT format
For more information about the PPT courseware "The Meaning of Decimals and Addition and Subtraction to Measure Weight", please click the "The Meaning of Decimals and Addition and Subtraction ppt to measure weight ppt" tag.
File Info
Update Time: 2024-10-14
This template belongs to Mathematics courseware Mathematics Volume 2 for Grade 4 of Beijing Normal University industry PPT template
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