Substitution

Front

What is substitution in mathematics?

Back

Substitution is a method of replacing a variable in an expression or equation with a specific value.

Front

If v = 9, h = 7, and s = -6, what is the value of -2v + 2h - 8s?

Back

44

Front

What is the sum of a, b, c, and d if a = 2, b = 3, c = 4, and d = 5?

Back

14

Front

When x = 3, y = 6, and z = 7, what is the value of 2x - z?

Back

-1

Front

If a = 4, b = 5, and c = 6, what is the value of 2c - a - b?

Back

3

Front

What is the value of 3a + 5b if a = 4 and b = 6?

Back

42

Front

Define a variable in mathematics.

Back

A variable is a symbol used to represent an unknown value in mathematical expressions or equations.

Front

What does it mean to evaluate an expression?

Back

To evaluate an expression means to calculate its value by substituting the variables with their corresponding values.

Front

What is the order of operations in mathematics?

Back

The order of operations is a set of rules that determines the sequence in which calculations are performed: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

Front

If a = 5 and b = 10, what is the value of a + 2b?

Back

25