One doubled once is 1*2. One doubled twice is 1*22. One doubled three time is 1*23=8.... One doubled 64 times is 1*264=264, or approximately 1.84*1019, or 18.4 quintillion.
One half doubled will give you a whole or one.
3
1/2.
3
2/3 of a cup doubled is 1 and a half cups
A natural number is doubled when added to its reciprocal. Find that number!
3/4 of a cup doubled is 6/4 of a cup, which equals 1 1/2 cups
1 MILLION!
1,048,576
One fourth cup doubled is one half cup, since 1/4 + 1/4 = 2/4, or 1/2.
A quarter cup doubled is half a cup. This is because 1/4 cup + 1/4 cup = 1/2 cup.