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Subtractingbinarynumbers subtractingbinarynumbers 0

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Unformatted text preview: mbers 0101 + 0010 = 1- 0110 2- 0111 3- 1001 4- 1010 Add the Binary Numbers Add the Binary Numbers 0101 + 0010 = 1- 0110 2- 0111 3- 1001 4- 1010 Add the Binary Numbers Add the Binary Numbers 0101 + 0101 = 1- 0110 2- 0111 3- 1001 4- 1010 Add the Binary Numbers Add the Binary Numbers 0101 + 0101 = 1- 0110 2- 0111 3- 1001 4- 1010 News Flash! Choose your own topics! Use those laptops List and vote: 1. 2. 3. Overflow in Binary Addition Overflow in Binary Addition Typically we are limited to representing a number by a certain number of binary digits. Let’s say we are using 4 bits and want to add 1110 and 0010 The answer is 10000, but we only have 4 bits so the extra 1 is lost and we reset to 0000 This is like the odometer on your car. Such overflow can lead to funny unexpected results. Subtracting Binary Numbers Subtracting Binary Numbers 0 1 1 0 0 ­ 0 0 1 1 0 0 Again we subtract column by column Subtracting Binary Numbers Subtracting Binary Numbers 0 0 1 1 10 0 ­ 0 0 1 1 0 0 But we may have to carry like we would in decimal subtraction. Subtracting Binary Numbers Subtracting Binary Numbers 0 0 1 1 2 0 ­ 0 0 1 1 0 0 But we may have to carry much as we would in decimal subtraction. Subtracting Binary Numbers Subtracting Binary Numbers 0 0 1 1 2 0 ­ 0 0 1 1 0 1 0 But we may have to carry much as we would in decimal subtraction. Subtracting Binary Numbers Subtracting Binary Numbers 0 2 0 1 1 2 0 ­ 0 0 1 1 0 1 1 0 But we may have to carry much as we would in decimal subtraction. Subtracting Binary Numbers Subtracting Binary Numbers 0 2 0 1 1 2 0 ­ 0 0 1 1 0 0 0 1 1 0 But we may have to carry much as we would in decimal subtraction. Subtract the Binary Numbers Subtract the Binary Numbers 0101 – 0010 = 1- 0010 2- 0011 3- 0110 4- 1001 Subtract the Binary Numbers Subtract the Binary Numbers 0101 – 0010 = 02 0101 0010 0011 1- 0010 2- 0011 3- 0110 4- 1001 Subtract the...
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