Exponents, Order of Operations and Expressions

Front

What is an exponent?

Back

An exponent is a number that shows how many times to use the base in a multiplication. For example, in 2^3, 2 is the base and 3 is the exponent, meaning 2 is multiplied by itself 3 times (2 x 2 x 2).

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

Calculate 5^2.

Back

25

Front

What does the expression 3 + 4 × 2 mean according to the order of operations?

Back

First, perform the multiplication: 4 × 2 = 8, then add: 3 + 8 = 11.

Front

What is the value of 2^4?

Back

16

Front

If c = 5 and d = 3, what is the value of cd?

Back

15

Front

What is the expression for 'x decreased by 7'?

Back

x - 7

Front

What is the value of 6^2 + 3?

Back

39

Front

What is the expression for '14 more than p'?

Back

p + 14

Front

If d = 2, what is the value of 2d + 15?

Back

19