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7) How many binary digits are required to count to decimal 100? A) 7 B) 2 C) 3 8) What decimal number does 25 represent? A) 10 B) 31 9) Decimal 42 is equivalent to binary. A) 01000010 B) 52 10) In binary addition, 1+0=_ A) 0 with a carry of 0 C) 0 with a carry of 1 11) In binary addition, 1+1=_ A) 0 with a carry of 0 C) 0 with a carry of 1 12) In binary addition, 10 + 11 =_ A) 11 B) 21 13) In binary addition, 0111 +0001 =_ A) 1001 B) 111 C) 25 C) 2A B) 1 with a carry of 0 D) 1 with a carry of 1 B) 1 with a carry of 0 D) 1 with a carry of 1 C) 111 C) 1110 D) 100 D) 32 D) 101010 D) 101 D) 1000 7) 8) 9) 10) 11) 12) 13) 14) In binary subtraction, 1 - 0 = A) 0 with a borrow 0 C) 0 with a borrow of 1 15) In binary subtraction, 1 - 1 = A) 0 with a borrow 0 C) 0 with a borrow of 1 16) In binary subtraction, 100 - 001 = A) 00 B) 11 17) Perform the following binary subtraction: 11011111= A) 100010 B) 0011 18) In binary multiplication, 1 x 0 = A) 0 C) 1 19) In binary multiplication, 1 x 1 = A) 0 C) 1 20) In binary multiplication, 11 x 11 = A) 11 B) 1111 21) In binary multiplication, 11 x 110 = A) 11001 B) 11111 22) In binary division, 1001+ 11 = A) 00 B) 01 23) In binary division, 1000+0100 = A) 0001 B) 0010 24) The 1 s complement of binary 101010 is A) 010110 B) 010101 25) The 2 s complement of binary 110110 is A) 110100 B) 101010 A) size, base C) sign, base B) 1 with a borrow of 0 D) 1 with a borrow of 1 B) 1 with a borrow of 0 D) 1 with a borrow of 1 C) 10 C) 10100 B) 0 with a carry of 1 D) 1 with a carry of 0 B) 0 with a carry of 1 D) 1 with a carry of 1 C) 1001 C) 10110 C) 11 C) 0100 C) 110111 C) 001001 26) All digital systems which perform arithmetic operations must indicate for numbers. B) sign, magnitude D) magnitude, base D) 1001 D) 10111101 D) 110 D) 10010 D) None of these D) None of these D) 101011 D) 001010 and 14) 15) 16) 17) 18) 19) 20) 21) 22) 23) 24) 25) 26)