This is one of the home work challengers I choose A1. Improve your maths ability: Complete a random 10 x 10 grid in under 2 min. I used an iPhone to time the 2 minutes and I made the grids on the computer.
It took me a long time to finish the 10 x 10 grid in under 2 minutes. I had to do about 50 grids until I got under 2 minutes. On my first one I had about 20 left over but I kept trying and finally completed it in under 2 minutes.
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| This is a photo of the gird I completed in under 2 minutes. |
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