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How do you do a multiplication?
for example, 2x6=12 what you have to do is see the second digit, the 6, and look at the 1st digit, the 2, which means you add six together 2 times
What is the digit in the 1001st place when 2 is divided by 7?
2 ÷ 7 = 0.285714285714... ie it repeats the 6 digits: {2, 8, 5, 7, 1, 4}. Therefore taking the digit place modulus 6 will tell you which of these digits occupies that position (if the result of the modulus is 0, the 6th of the list, ie the '4', is the required digit). 1001 mod 6 = 5 → 1001st digit of 2/7 is a '1' (assuming the 1st digit is the 1st digit after the decimal point).
If you add a two digit number to a two digit number do you get a four digit number?
No. When adding the smallest 2 digit number (= 10) to the smallest 2 digit number (again, 10) the result is a 2 digit number (10 + 10 = 20). When adding the largest 2 digit number (= 99) to the largest 2 digit number (again, 99) the result is a 3 digit number (99 + 99 = 198). As you can see, you'll either get a 2 or 3 digit number, but never a 4 digit number.
How many 5 digit numbers are there with distinct digits?
There are 30,240 different 5-digit numbers. Math: 10*9*8*7*6 1st digit has 10 possible choices (0-9) 2nd digit has 9 possible choices (one of the digits was used in the 1st digit) 3rd digit has 8 possible choices 4th digit has 7 possible choices 5th digit has 6 possible choices
A ten digit number in which 1st digit indicates the number of 0s and 2nd digit indicates the number of 1's and so on the 10th digit indicates the number of 9's what is that 10 digit number?
6210001000
