Adding and Multiplying in Binary
When does 1 + 1 = 10? When you are adding binary numbers. Addition of binary numbers is much the same as with decimal numbers. For example, decimal numbers 23 and 15 in binary format are 10111 and 01111, and their sum is calculated as
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As you see, sums are simple as long as you remember to carry a 1 whenever you add 1 + 1. Multiplication is just as simple:
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Find the following binary sums and products:
a. 11111 + 00001
b. 101010101 + 010101011
c. 111100011101 + 01001011111
d. (111) × (101)
e. (1010) × (0101)
f. (11111) × (11111)
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