Biểu thức có một chữ số

Front

What is the result of adding a number to a constant?

Back

To find the result of adding a number (x) to a constant (C), simply perform the operation C + x.

Front

How do you perform subtraction with a division operation?

Back

To solve an expression like A - (B : C), first divide B by C, then subtract the result from A.

Front

What is the formula for evaluating an expression with a variable?

Back

To evaluate an expression like (A - c) + B, substitute the value of c into the expression and perform the operations.

Front

How do you evaluate an expression with multiplication and division?

Back

In an expression like A x (B : y), first divide B by y, then multiply the result by A.

Front

What is the order of operations in mathematics?

Back

The order of operations is Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right), often abbreviated as PEMDAS.

Front

What does it mean to evaluate an expression?

Back

Evaluating an expression means to calculate its value by substituting variables with numbers and performing the necessary operations.

Front

How do you handle variables in expressions?

Back

Variables in expressions represent unknown values; to solve, substitute the variable with a known value and simplify.

Front

What is the significance of constants in mathematical expressions?

Back

Constants are fixed values that do not change; they are essential for forming equations and expressions.

Front

How do you simplify an expression with multiple operations?

Back

To simplify an expression with multiple operations, follow the order of operations (PEMDAS) to ensure accurate calculations.

Front

What is the result of dividing a number by a variable?

Back

Dividing a number by a variable (e.g., A : x) results in a fraction or expression that represents the relationship between A and x.