PTMS Math Showdown Round 1

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 is often used: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

Front

Calculate: 36 - (2 ⋅ 6) ÷ 3

Back

32

Front

Calculate: 27 - 18 ÷ 3

Back

21

Front

What is scientific notation?

Back

Scientific notation is a way of expressing numbers that are too large or too small to be conveniently written in decimal form. It is written as a number between 1 and 10 multiplied by a power of 10.

Front

Express 0.000457 in scientific notation.

Back

4.57 x 10^-4

Front

What is the formula for the area of a square?

Back

The area of a square is calculated using the formula: Area = side × side.

Front

If the side of a square is 9 cm, what is its area?

Back

81 square cm

Front

What does √x represent?

Back

√x represents the square root of x, which is a value that, when multiplied by itself, gives x.

Front

Which relation is true: √400 = x or x^2 = 20?

Back

√400 = x is true, as x = 20.

Front

What is the value of 2 ⋅ 6?

Back

12