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 (-).

To subtract numbers, follow these steps:

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

Subtract 357 from 892.

8 | 9 | 2 | ||

- | 3 | 5 | 7 | |

= | 5 | 6 | 6 |

The result is 535.

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)

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

- Subtract 456 from 820.
- Subtract 297 from 500.
- Subtract 84 from 150.

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

Study GuideAdd/Subtract Fractions Worksheet/Answer key

Add/Subtract Fractions Worksheet/Answer key

Add/Subtract Fractions Worksheet/Answer key

Add/Subtract Fractions Worksheet/Answer keyNumber Problems Worksheet/Answer keyNumber Problems Worksheet/Answer keyNumber Problems Worksheet/Answer keyNumber Problems Worksheet/Answer keyBox It Up Worksheet/Answer keyAdding and Subtracting Mixed Numbers

Number and Operations (NCTM)

Understand numbers, ways of representing numbers, relationships among numbers, and number systems.

Work flexibly with fractions, decimals, and percents to solve problems.

Understand meanings of operations and how they relate to one another.

Understand the meaning and effects of arithmetic operations with fractions, decimals, and integers.

Compute fluently and make reasonable estimates.

Select appropriate methods and tools for computing with fractions and decimals from among mental computation, estimation, calculators or computers, and paper and pencil, depending on the situation, and apply the selected methods.

Develop and analyze algorithms for computing with fractions, decimals, and integers and develop fluency in their use.