Algebraic Expressions and Equations Worksheet-3

Algebraic notation includes five main components: variables, coefficients, mathematical operators (addition, subtraction, multiplication and division), exponents, and parentheses or brackets

Difference between an albebraic expression and an algebraic equation

An algebraic expression contains atleast one variable but doesn't contain an equal to  ( =) sign,whereas an equation contains equal to sign.

for example;

3x² + 2y is an algebraic expression and

3y + 5 = 17 is an equation.

Algebraic Expressions & Equations Worksheet-3

21. The product of a number and 7 is 63. What is that number?

A. 8                     B. 56                   C. 9                     D. 7

22. How do you write "n increased by 4" as an equation?

A. n + 4              B. 4n                   C. n − 4              D. 4 = n

23. Write the following sentence as an algebraic equation. Katrina is y years old. In 5 years she will be 18 years old.

A. 18 ÷ 5 = y      B. y − 5 = 18      C. 5y = 18          D. y + 5 = 18

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24. Monika had n stickers. She gave 32 stickers each to two of her friends. If she has 28 stickers left, what is the value of n?

A. 64                   B. 91                    C. 92                   D. 90

25. A number increased by seven is fifteen. Find that number.

A. 8                     B. 9                     C. 22                   D. 12

Answer Keys

(21)–C; (22)–A; (23)–D; (24)–C; (25)–A