The applet below creates problems for you to practice converting between decimal and binary or hexadecimal. You will be given a number in one base, and asked to convert it to a different one. When you have computed your answer, enter it in the box and then click on the "Check Answer" button to find out if you did the problem correctly. You may try the same conversion with a different number by clicking on the "Same Problem" button, or choose to practice calculating either the next conversion in sequence ("Next Problem" button) or a random conversion ("Random Problem" button).

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