
Nelson EducationSchoolMathematics 4  
Lesson 6  Estimating DifferencesTo encourage students to have fun on the Web while learning about Estimating Differences, here are some games and interactive activities they can do on their own or in pairs. GoalEstimating differences by rounding. Builds UponStudent Book page 102
Instructions for UseEstimate Differences by Rounding lets students practice estimating differences by rounding. To use Estimate Differences by Rounding, click the 'Start Subtraction' button. Estimate the difference between the two numbers and click on the button closest to your estimation. This will indicate if you have the correct answer.
Estimate Difference allows students to estimate differences by rounding. To use Estimate Difference , click the 'Start Subtraction' button. Estimate the difference between the two numbers and input your answer closest to your estimation. Click the 'Check' button to indicate if you have the correct answer. .

