Subtraction

Subtraction is the mathematical operation of taking away one number from another. It is the opposite of addition and is denoted by the minus sign (-).

How to Subtract Numbers

To subtract numbers, follow these steps:

1. Write down the larger number first.
2. Write the smaller number below the larger number, aligning the digits by place value.
3. Subtract the digits starting from the rightmost column and borrow when necessary.
4. If necessary, bring down any remaining digits from the larger number.

Example:

Subtract 357 from 892.

The result is 535.

Subtraction Facts

Here are some important subtraction facts to remember:

• Subtracting a number from itself results in 0. (e.g., 7 - 7 = 0)
• Subtracting 0 from a number gives the same number. (e.g., 9 - 0 = 9)
• Subtraction is not commutative. The order of the numbers matters. (e.g., 8 - 3 is not the same as 3 - 8)

Practice Problems

Now that you understand the concept of subtraction, try these practice problems to test your skills:

1. Subtract 456 from 820.
2. Subtract 297 from 500.
3. Subtract 84 from 150.

Remember to always double-check your answers and ask for help if you need it!