We have two posts today! Please make sure you also see the information and pictures in the following post.
Today we practiced extending our estimating skills. We worked on estimation problems with missing addends
For example: 34+ ____ = an estimation of 70 Use estimation to find all possible solutions.
First: The closest 10 to 34 is 30 so... 30 + 40 = 70
Then: We use 40 as the number we want to round to.
Finally: We make a list of all numbers that have 40 as their closest 10.
After completing problems together we created a voki to explain how to find the solution to
85 + ______ = an estimate of 110
Please click on the link below to access the voki.
http://voki.com/pickup.php?scid=7166559&height=267&width=200
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