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What is the approximate value of pie upto 5 places of decimal?
Pi to 5 decimal places is about 3.14159
What is the square root of 70.9?
8.42 (upto 2 decimal places)
What is the square root of 10 upto 10 decimal places?
3.1622776601
Upto how many decimal numbers roman numerals are available?
The Romans did not use decimals as we know them today but they did use fractions to a limited extent.
What rules are applicable to subtracting two values that have different numbers of decimal places for example subtracting 2.1 from 2.15?
When subtracting numbers, the numbers need to be aligned in place value columns. The easiest way to do this is to align the decimal points. If one number has less digits after the decimal point then extra zeros can be added to the end of the number to make it the same length as an empty place value column is the same as one with a zero in it (zero was originally first used to indicate an empty place value column). So for 2.15 - 2.1 the decimal points need to be aligned: _____2.15__ _____2.1___ But to make the subtraction easier, adding extra zeros after the 1 of 2.1 to make the 2.1 the same length as the 2.15 (ie upto the hundredths digit) helps: _____2.15___ _____2.10___ Now you can easily do the subtraction: _____2.15___ _____2.10___ _____-----____ _____0.05____ _____===____ This trick of appending extra zeros is very useful if the first number has less digits, eg 2.2 - 2.15: _____2.2_____ _____2.15____ Becomes: _____2.20____ _____2.15____ Which is easier to do, giving: _____2.20____ _____2.15____ _____-----_____ _____0.05____ _____===_____
