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Subtraction: how to do Subtraction of two-digits

To subtract two-digit numbers, follow these steps:

1. Write down the minuend (the number being subtracted from) on the top and the subtrahend (the number being subtracted) on the bottom.
2. Align the digits by place value, so that the ones column is lined up with the ones column of the other number, the tens column with the tens column, etc.
3. Start at the rightmost digit (ones column) and subtract the corresponding digits in each column.
4. If the digit in the minuend is greater than or equal to the digit in the subtrahend, subtract the digits and write the result in the answer space.
5. If the digit in the minuend is less than the digit in the subtrahend, borrow from the next higher place value. Write down the borrowed digit above the current digit, subtract the borrowed amount from the current digit, and continue subtracting as usual.

For example, let’s say we want to subtract 28 from 76:
“`
76
– 28

= 48
“`

In this case, we start by subtracting 8 from 6. Since 8 is greater than 6, we can simply subtract them and write the result (4) in the ones column of the answer.
Next, we move on to the tens column. We need to subtract 2 from 7, but since 7 is not greater than 2, we need to borrow from the hundreds column. We write down a 0 above the 7 and subtract 1 from it, leaving us with 6. Then we can subtract 2 from 6, giving us a final result of 48.
I hope this helps! Let me know if you have any other questions.

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Subtraction: how to do Subtraction of One-digits

To subtract one-digit numbers, follow these steps:

1. Line up the two numbers vertically.
2. Align the digits that you will be subtracting under each other.
3. Subtract the digit in the ones place from the digit in the ones place of the minuend (the number being subtracted from).
4. If the difference is zero or negative, write down a zero and carry over a 1 to the next column on the left.
5. If there is no digit in the ones place of the minuend, borrow a 10 from the tens place and add it to the ones place.
6. Repeat step 3 for each column, working from right to left.

Example:
Subtract 8 from 17:

“`
17
– 8
——-
19
“`

In this example, we subtract 8 from 7 in the ones place to get 9. We don’t need to borrow any numbers because 7 minus 8 is not possible without borrowing. Therefore, the answer is 9.

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10 Mega Reasons Why Subtraction is Important in your Life

Subtraction is an essential mathematical operation that allows us to determine the difference between two or more numbers. Here are ten mega reasons why subtraction is important in our lives:

1. Money management: Subtracting the cost of expenses from your income helps you keep track of how much money you have left and make informed decisions about spending.

2. Time calculation: Subtracting one time period from another is a crucial skill for calculating how much time has passed, planning schedules, and estimating arrival times.

3. Sports statistics: In sports, subtraction is used to calculate scores, goal differences, and other statistical measures that help teams and fans understand the performance of players and teams.

4. Scientific research: Scientists use subtraction to measure changes in variables over time, analyze data, and draw conclusions about cause-and-effect relationships.

5. Cooking measurements: When baking or cooking, subtraction is often used to adjust recipes based on available ingredients, ensure portion control, and avoid waste.

6. Geography: Subtraction is used to calculate distances between locations on maps and plan routes for travel.

7. Engineering design: Engineers use subtraction to calculate dimensions, volumes, and areas of structures, components, and materials during the design process.

8. Environmental monitoring: Scientists use subtraction to monitor changes in environmental conditions, such as air quality, water levels, and temperature.

9. Personal finance: Subtracting debt from assets can help individuals manage their finances, improve credit scores, and achieve financial goals.

10. Everyday problem-solving: Subtraction is a fundamental tool for solving everyday problems, such as calculating change, figuring out discounts, and measuring distances.

References:
– Khan Academy. (n.d.). Subtraction. Retrieved from https://www.khanacademy.org/math/arithmetic/arith-review/composite-operations/a/subtraction
– MathisFun.com. (n.d.). Subtraction. Retrieved from http://www.mathsisfun.com/subtraction.html

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