What is the greatest three-digit number that can be written in base four? What numbers come just before and just after this number?
Video Segment In this video segment, Ben and Liz work with manipulatives to represent numbers in base four and solve some arithmetic problems. They realize that they need to move to the next place value in base four. Watch this segment after you've completed Problems C1-C4.
Did you find it necessary to think about what each place value means in order to solve these problems in base four?
If you are using a VCR, you can find this segment on the session video approximately 16 minutes and 15 seconds after the Annenberg Media logo.
Count by twos to 30four.
In base four, how can you tell if a number is even?
Look for a pattern in the results of the first question to help you answer the second. Close Tip