Lesson
5 – Estimating Differences
To 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.
Goal
Estimate in subtraction situations.
Builds Upon
Student Book pages 160-161
Instructions for Use
Estimating
Differences lets students estimate the difference of 2 numbers.
To use Estimating Differences, click the ‘Start Subtraction’
button and read the equation in the text field. Have students click the
button to indicate if the answer is correct.
Estimating
Differences using Really Big Numbers lets students estimate the difference
of two large numbers.
To use Estimating Differences using Really Big Numbers, click the ‘Start
Subtraction’ button and read the equation in the text fields. Have
students click the button to indicate if the answer is correct.
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