101
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1111 - 1010 = 0101
15 - 10 = 5
By the way, there's no such thing as "binary subtraction". Subtraction is always done
the same way, but before we start, we have to know what base the numbers are
written in, so that we can borrow ("regroup") properly as we go.
1111 + 0001 + 1000 + 0100 = 11100 Remember that in binary, 1 + 1 = 10 (0 carry 1) and 1 + 1 + 1 = 11 (1 carry 1).
0.222 = 1111/5000
.1111 is rational. Rational numbers are numbers that can be written as a fraction. Irrational numbers cannot be expressed as a fraction.
24 = 16 1111 1112, 1121, 1211, 2111 1122,1212,2112,2121,1221,2211 1222,2122,2212,2221 2222
public static void main(String[] args) { for(int i=1;i<5;i++) { for(int j=1;j<5;j++) { System.out.print(i); } System.out.println(); } }