Subtracting integers game
This nice subtracting integers game will really challenge you and help you sharpen your basic mathematics skills. You have 70 seconds to answer as questions as you can get correctly in 70 seconds.
You should use any means necessary to get the answer, such as mental math, paper and pencils, and a number line.
However, I strongly recommend that you do not use a calculator!
Here is my guideline to verify how well you are doing:
and 1-9 points in 70 seconds: Very well, keep up!
and 9-18 points in 70 seconds: good!
and more than 18 points in 70 seconds: Expert!
and 1-7 points in 70 seconds: Very well, keep up!
and 7-14 points in 70 seconds : Good!
and more than 14 points in 70 seconds: Expert!
and 1-6 points in 70 seconds: Very well, keep up!
and 6-12 points in 70 seconds : Good!
and more than 12 points in 70 seconds: Expert!
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