Page 10 - Math Course 1 (Book 1)

Order of Operations

Mo. 1

Lesson 1

KEY CONCEPTS:
1. Translate verbal phrases into numerical
expressions.
2. Use the order of operations to evaluate Key Concept
expressions.

MO. 1 - L1a Addition (+) Words

Translating Verbal Phrases into more than means to add
Numerical Expressions sum means to add
means to add
plus
increased by means to add
Vocabulary A-Z 4 + 2 The sum of four and two
Four plus two
Let us learn some vocabulary Two more than four

Subtraction (-) Words
Numerical Expression
less than means to subtract
a phrase using numbers. difference means to subtract
minus means to subtract
1 + 2 3 x 3 + 2 (5 - 2) x 7 from means to subtract
decreased by means to subtract

Four minus two
An expression (or phrase) is a group of words. 4 - 2 Two less than four
The difference of four and two

Multiplication (x) Words

times means to multiply
Good morning. Have a nice day. product of means to multiply
by means to multiply

A numerical expression uses numbers. Four times two
9 + 2 3 x 3 + 2 4 x 2 The product of four and two

Translate
Division (÷) Words
We translate when we change a phrase or
expression into a different language.
quotient means to divide
Thai English per means to divide
English Thai rate means to divide
Words Numbers ratio means to divide
divided by means to divide
When you translate Four divided by two
English Maths 4 ÷ 2 The quotient of four and two
Maths English
Find the words that help
you
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