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Surf for More Math

Lesson 5 - Solving Equations by Systematic Trial


To encourage students to have fun on the Web while learning about Solving Equations by Systematic Trial, here are some games and interactive activities they can do on their own or in pairs.


Solving equations using systematic guessing and testing.

Builds Upon

Student Book pages 288-291



Instructions for Use

How to Solve Equations lets students read two methods to solve the same equation.

To use How to Solve Equations, read the website. Try solving the equations using a pencil and paper.


Goldilocks Math lets students use guessing and testing to solve an equation.

To use Goldilocks Math, enter a value for 'x' in A2 of the spreadsheet. The spreadsheet will find the value of 'y' and the sum and product of 'x' and 'y'. Press "Enter". Enter other guesses in cells A3 to A7.