Adding game
This adding game will really help you sharpen your basic mathematics skills while you race against the clock.
Basically, you have 60 seconds to see how many exercises you can get correctly in 60 seconds
You should use any means necessary to get the answer, such as mental math, paper and pencils.
However, I strongly recommend that you do not use a calculator!
Here is my guideline to verify how well you are doing:
Easy and 18 points in 60 seconds: Very well, keep up!
Easy and 816 points in 60 seconds: good!
Easy and more than 16 points in 60 seconds: Expert!
Moderate and 15 points in 60 seconds: Very well, keep up!
Moderate and 510 points in 60 seconds : Good!
Moderate and more than 10 points in 60 seconds: Expert!
Difficult and 12 points in 60 seconds: Very well, keep up!
Difficult and 25 points in 60 seconds : Good!
Difficult and more than 5 points in 60 seconds: Expert!

Feb 20, 19 12:46 PM
In number theory, a deficient number is a number where the sum of its ..
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