https://padlet.com/lisa_tchorz/xfm9tjynf6b7 Made with charm en-us 2017-10-23 12:15:28 UTC 2022-10-31 21:04:21 UTC hello@padlet.com 30366131 https://padlet.com/lisa_tchorz/xfm9tjynf6b7/wish/2363910957 1. Calculation method of decimal addition and subtraction: align the decimal points, that is, the same digits; count from the lowest digit, add 1 to every 10;

2. When the minuend is an integer, add a decimal point, and add "0" according to the decimal part of the subtrahend before subtracting.

3. When calculating decimal addition and subtraction in vertical format, the "0" at the end of the decimal point cannot be removed. When writing the result in the horizontal format, the "0" at the end of the decimal point must be removed.]]> 2022-10-31 20:08:09 UTC https://padlet.com/lisa_tchorz/xfm9tjynf6b7/wish/2363910957 https://padlet.com/lisa_tchorz/xfm9tjynf6b7/wish/2363956309 To subtract the decimals, follow these steps:
1. Write down the two numbers, one under the other, with the decimal points lined up.
2. Add zeros so the numbers have the same length.
3. Finally, subtract normally, remembering to put the decimal point in the answer.

To add the decimals, follow these steps:
1. line up the decimal points vertically. Always fill in the 0's.
2. Add the numbers as if they were whole numbers.
3. Place the decimal point in the sum or difference so that it lines up vertically with the numbers being added.]]> 2022-10-31 21:04:18 UTC https://padlet.com/lisa_tchorz/xfm9tjynf6b7/wish/2363956309