order of operations

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. The acronym PEMDAS helps remember the order: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

Front

What does PEMDAS stand for?

Back

PEMDAS stands for Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

Front

Calculate: 3 + 5 x 2

Back

3 + 5 x 2 = 3 + 10 = 13 (Multiplication is done before addition).

Front

Calculate: (4 + 6) x 2

Back

(4 + 6) x 2 = 10 x 2 = 20 (Parentheses are calculated first).

Front

What is an exponent?

Back

An exponent is a number that shows how many times a base is multiplied by itself. For example, 5^3 means 5 x 5 x 5.

Front

Which operation is performed first in the expression 8 - 3 + 2?

Back

Subtraction is performed first: 8 - 3 = 5, then 5 + 2 = 7.

Front

What is the result of 2^3 + 4?

Back

2^3 + 4 = 8 + 4 = 12 (Calculate the exponent first).

Front

Calculate: 10 - (2 + 3) x 2

Back

10 - (2 + 3) x 2 = 10 - 5 x 2 = 10 - 10 = 0 (Parentheses first, then multiplication).

Front

What is the value of 5 x 5 x 5 x 5?

Back

5 x 5 x 5 x 5 = 5^4 = 625.

Front

Identify the error: 5 - 3 + 2 = 5 - 5 = 0

Back

The error is that addition was done first instead of subtraction.