Equations

Expressions

Numerical expressions contain only constants and arithmetic operations (+, –, x, ÷), and sometimes grouping symbols like parentheses. They represent a single value.

Example:

Question1: Evaluate the sum of 7 and 8.    

Answer 1:    7+8= 15

Question 2: Evaluate the difference of twenty-two and eight divided by two

Answer 2:    (22-8)÷2 =14÷2 = 7

Question 3:   add fourteen and six, then multiply by 3

Answer 3:  (14+6)x3 = (20)x3 = 60

 


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