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Terms In Expressions

Define terms as parts of an expression separated by a plus sign, converting subtractions to additions of inverses.

9 micro-lessons

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What are Terms?

Defining terms and how to handle subtraction.

When an expression has multiple operations and no brackets to tell us what to do first, we use the notion of terms to determine the order.

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Token Model

Visual of the token model converting subtraction.

$Terms in Expressions$

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Subtracting 14 is the exact same action as adding negative 14.

Multiplication in Terms

Note that multiplication blocks are single terms.

Multiplication blocks like

6 \times 5

and

4 \times 6

form single terms because they do not have any

+

sign inside them to separate the numbers.

Identifying Terms

Worked examples from page 28 showing term identification.

Problem. Identify the separate terms in the following three mathematical expressions:
(a) $-18 - 3$
(b) $6 \times 5 + 3$
(c) $2 - 10 + 4 \times 6$

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Complete the Term Table

Faded practice for term identification.

0 of 3 blanks filled

Let's identify the terms in the complex expression $23 - 2 \times 4 + 16$ .

Step 1: Convert the subtraction to addition. Subtracting a number is the same as adding its . The expression can be rewritten as $23 + ($ $) + 16$ .

Step 2: List the terms separated by the plus signs. Because they form a single unit, we do not split up a block.

Therefore, the three terms are $23$ , $-2 \times 4$ , and $16$ .

Count the Terms

Identify the number of terms in an expression.

How many terms are in the expression: $48 - 10 \times 2 + 16 \div 2$ ?

More Expressions and Their Terms

Using terms in applied word problems.

The Dosa Bill

Imagine you and your friends go to a hotel and order 4 dosas. Each dosa costs ₹23, and you decide to leave a flat ₹5 tip to thank the waiter.