4th Grade Math

AlgebraSolve for an unknown number represented by a

letter

Jessica Corriere & Robert Richards

This PowerPoint is a

sample of the book, 4th

Grade Math

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Use letters, boxes, or other symbols to stand

for any number in simple expressions or

equations (e.g., demonstrate an

understanding and the use of the concept of

a variable).

Which number is symbolized by n?

6 x n = 48

A. 6

B. 7

C. 8

D. 9

How to solve

Understand how to solve for the unknown.

6 x n = 48

Both sides must be treated the same

Divide both sides by 6 to get the n alone on one side

(6 x n) ÷ 6 = 48 ÷6

n = 48 ÷6

n = 8

Choice C has the correct answer

***

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