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 GuideAlgebraic Equations Worksheet/Answer key

Algebraic Equations Worksheet/Answer key

Algebraic Equations Worksheet/Answer key

Algebraic Equations Worksheet/Answer keyAlgebraic Equations Worksheet/Answer key

Algebraic Equations Worksheet/Answer keyAlgebraic Equations

Algebra (NCTM)

Represent and analyze mathematical situations and structures using algebraic symbols.

Recognize and generate equivalent forms for simple algebraic expressions and solve linear equations

Grade 6 Curriculum Focal Points (NCTM)

Algebra: Writing, interpreting, and using mathematical expressions and equations

Students write mathematical expressions and equations that correspond to given situations, they evaluate expressions, and they use expressions and formulas to solve problems. They understand that variables represent numbers whose exact values are not yet specified, and they use variables appropriately. Students understand that expressions in different forms can be equivalent, and they can rewrite an expression to represent a quantity in a different way (e.g., to make it more compact or to feature different information). Students know that the solutions of an equation are the values of the variables that make the equation true. They solve simple one-step equations by using number sense, properties of operations, and the idea of maintaining equality on both sides of an equation. They construct and analyze tables (e.g., to show quantities that are in equivalent ratios), and they use equations to describe simple relationships (such as 3x = y) shown in a table.