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Note: This section only covers unsigned binary numbers. An unsigned binary number can only represent non-negative values, such as a 4-bit binary number being 0000

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Note: This section only covers unsigned binary numbers. An unsigned binary number can only represent non-negative values, such as a 4-bit binary number being 0000 (0).0001 (1).0010 (2)... 1111 (15) In contrast, a signed binary number uses the leftmost bit to represent whether a number is positive or negative PARTICIPATION ACTIVITY 1.5.2 Counting up in binary Type the next higher 3-digit binary number. 1) 000 Check Show answer 2) 001 D Check Show answer 3) 010 Check Show answer 4) 011 Check Show answer 5) 111 (type a 4-bit answer) Check Show answer Feedback? CHALLENGE ACTIVITY 1.5.1: Counting up with 3 bits. Can you count from 000 to 111 in binary in 20 seconds? Jump to level 1 Decimal Binary (3 bits) 000 0 1 001 2. 010 3 011 4 0 5 6 7 5 Check Next Feedback? PARTICIPATION ACTIVITY 1.5.4. Converting from binary to decimal. Convert from binary to decimal Use the fewest decimal digits possible. Recall that four-bit binary digit weights are 8.4.2 and 1 1) 0001 J Check Show answer 2) 0010 Check Show answer 3) 0111 Check Show answer 4) 1001 Check Show answer 5) 1111 Check Show answer Feedback? Converting from decimal to binary Given a decimal number, starting from the leftmost binary digit (greater than the decimal number), a 1 is placed in each digit as long as the resulting binary number doesn't exceed the decimal number PARTICIPATION ACTIVITY 1.5.5 Converting from decimal to four-bit binary Type a four-bit answer: 0101, not 101. Four-bit binary digit weights: 8,4 2,1 1) 3 J Check Show answer 2) 4 Check Show answer 3) 5 Check Show answer 4) 13 Check Show answer Feedback? PARTICIPATION ACTIVITY 1.5.6: Binary to decimal converter Edit either box Binary Decimal TL Feedback

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