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• You can turn this activity into a game to play with family or friends. To do so, print out a game board for each player. Each player randomly selects three rectangles with numbers, without looking. Start the stopwatch, and see who can calculate the most numbers quickly and correctly! Use the circles in the rectangles, corresponding to difficulty, as points, i.e. if a person writes a number whose rectangle has 3 circles, in the upper left corner, then he/she gets 3 points if it is written correctly in the binary system.  Repeat as many times as you want, and tally the points of all the players. Who will win?

• If you want more practice transforming numbers written in the decimal system into the binary system, check out this game from Cisco.https://learningcontent.cisco.com/games/binary/index.html