Over the last week or so I have been working on this challenge, the first time I did this I took me about 4 minutes, and the more I practiced the better I got at this. By the third time testing me it took me about 3 minutes 23 seconds. Today when I tried I got 1 minute, 56 seconds. This is a great improvement for me I shaved about 3 whole minutes off my first try. As you can see practice does make you perfect.
For my grids my mum did them so that I wouldn't know the answers before I was timed. Some of the grids I found harder than others, which was reflected in the different times I got yet they were still 10 x 10 grids. As you can see practice does make you perfect.
Here are some photos of the girds and my final one with the time I got.
That was great the way Mum mixed up the numbers for you. It's amazing how much you improved your times. Well done on achieving this goal.
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