Order of Operations and Arithmetic

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 in a mathematical expression. The acronym PEMDAS is often used to 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: 8 + 2 × 5

Back

18 (First, multiply 2 × 5 = 10, then add 8 + 10 = 18).

Front

Calculate: (3 + 5) × 2

Back

16 (First, add 3 + 5 = 8, then multiply 8 × 2 = 16).

Front

What is the result of 15 - 7 + 3?

Back

11 (First, subtract 15 - 7 = 8, then add 8 + 3 = 11).

Front

If a farmer has 10 apples and gives away 4, how many does he have left?

Back

6 apples (10 - 4 = 6).

Front

What is the sum of 604 and 207?

Back

811 (604 + 207 = 811).

Front

What is the difference when you subtract 267 from 589?

Back

322 (589 - 267 = 322).

Front

How many goats are there in 5 pens if each pen has 9 goats?

Back

45 goats (5 × 9 = 45).

Front

Solve using PEMDAS: 7 + 24 ÷ 8 × 4 + 6

Back

25 (First, divide 24 ÷ 8 = 3, then multiply 3 × 4 = 12, then add 7 + 12 + 6 = 25).