9046.
20 ÷ 11 = 1.81...
With the 81 repeating forever.
So the sum of the first 2011 digits is the first digit plus the next 2010 digits which are "81" repeated 1005 times.
Sum = 1 + (8 + 1) x 1005
= 9046
Pi to 144 decimal places is written thus: 3.14159265358979323846264338327950288419716939937510 58209749445923078164062862089986280348253421170679 82148086513282306647093844609550582231725359 The sum of these first 144 decimal digits (after the decimal point) is 666.
The first 55 digits of pi after the decimal point are: 3.1415926535897932384626433832795028841971693993751058209
0.0288
Not including the initial digit, the first 23 decimal digits of pi are 3.14159265358979323846264.
3.1415926535897932384626433832795 (that's 31 decimal places) !
Pi to 144 decimal places is written thus: 3.14159265358979323846264338327950288419716939937510 58209749445923078164062862089986280348253421170679 82148086513282306647093844609550582231725359 The sum of these first 144 decimal digits (after the decimal point) is 666.
Pi written in decimal has an infinite number of decimals. The first digits are 3.14159265.
The first 55 digits of pi after the decimal point are: 3.1415926535897932384626433832795028841971693993751058209
0.0288
The first occurrence of the digit 0 in the digits of pi is at the 32nd decimal place.
3.1415
3.1415
They are 14159265358979323846
Not including the initial digit, the first 23 decimal digits of pi are 3.14159265358979323846264.
You need to add up the number of digits to the right of the decimal to find the number of digits in the answer. If the first factor has 2 digits to the right of the decimal point and the second factor has 3, the final answer will have 5 digits to the right of the decimal point.
Significant figures are the digits in a number that convey meaningful information about its precision. They consist of all non-zero digits, zeros between non-zero digits, and trailing zeros after a decimal point or before a written decimal point in a number without an explicit decimal point.
One way is to multiply the numbers ignoring the decimal point. If the first multiplicand has d1 digits after the decimal point, and the second has d2 digits after the decimal point, then their product has (d1 + d2) digits after the decimal point.An alternative for the second stage is to estimate the answer to determine where the decimal point should go.