Name: ___________________

Date:___________________

kwizNET Subscribers, please login to turn off the Ads!
Email us to get an instant 20% discount on highly effective K-12 Math & English kwizNET Programs!

Grade 5 - Mathematics
13.1 Algebra (Find the Unknown)

  • Sometimes to solve a problem we have to form a mathematical equation. A letter or a text string is used to denote an unknown quantity while forming an equation. The unknown quantity is called a variable.
  • The equation may be solved to find the value of the variable.
  • While solving an equation, the variables are kept on one side and the numbers are transferred to the other side of the equation.

    Example:
    x - 5 = 10
    Adding 5 to both sides of the equation we get,
    x - 5 + 5 = 10 + 5
    x = 15

    Verification:
    Substituting the value of x in the equation
    x - 5 = 10
    15 - 5 = 10
    True, therefore the value of x is correct.

  • Note: If we perform some operation on one side of the equation, the same operation should be performed on the other side of the equation as well.

Directions: Find the value of the variable in each question. Also write at least 10 equations of your own and solve for x and verify your answer.

Name: ___________________

Date:___________________

Grade 5 - Mathematics
13.1 Algebra (Find the Unknown)

Q 1: X + 10 = 16
Answer:

Q 2: 4 = X + 4
Answer:

Q 3: X - 6 = 7
Answer:

Q 4: 3X = 6
Answer:

Q 5: 4 + X = 17
Answer:

Q 6: X + 5 = 14
Answer:

Q 7: 5 = X + 2
Answer:

Q 8: X + 2 = 8
Answer:

Question 9: This question is available to subscribers only!

Question 10: This question is available to subscribers only!


Subscription to kwizNET Learning System costs less than $1 per month & offers the following benefits:

  • Unrestricted access to grade appropriate lessons, quizzes, & printable worksheets
  • Instant scoring of online quizzes
  • Progress tracking and award certificates to keep your student motivated
  • Unlimited practice with auto-generated 'WIZ MATH' quizzes
  • Child-friendly website with no advertisements


© 2003-2007 kwizNET Learning System LLC. All rights reserved. This material may not be reproduced, displayed, modified or distributed without the express prior written permission of the copyright holder. For permission, contact info@kwizNET.com
For unlimited printable worksheets & more, go to http://www.kwizNET.com.