Number Sense Practice #1

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

10

A fraction represents a part of a whole and consists of a numerator (top number) and a denominator (bottom number).

$$\frac{5}{9}$$

Dividing by a fraction is equivalent to multiplying by its reciprocal. For example, $$9 \div \frac{1}{3} = 9 \times 3 = 27$$ .

27

The product of any number and zero is always zero.

3.6

The distributive property states that a(b + c) = ab + ac. It allows you to multiply a number by a sum.

70