Decimal numbers are always "like", because they all have the same type of denominator: a power of 10.
Just add 0s so that both numbers have the same number of digits after the decimal point. Or, just write the two numbers so that the decimal points line up, one below the other.
Chat with our AI personalities
To convert a number to scientific notation do as follows: 5800000 = 5.8 x 10^6 Put a decimal between the first and second number then from that second number count to the right. The number you have when you finish counting is the number that is in the power position.
DMS button on calculator
A decimal number is simply a way of representing a number in such a way that the place value of each digit is ten times that of the digit to its right. It may or may not contain a fractional part. If not, the decimal representation does not require a decimal point. So the decimal for 1 yard is 1 yard! If you want it as a decimal fraction of some other quantity then you need to specify that second quantity.
Expressed as a decimal fraction, 0.01 is equal to one hundredth. The hundredths place is the second digit after the decimal point - the first is the tenths place.
The '9' is in the "first decimal" place and the '3' is in the "second decimal" place.Rules for roundingIf the number in the second decimal place is 5 or greater then the number in the first decimal place is rounded upwards by 1.If the number in the second decimal place is 4 or less then the number in the first decimal place is left unchanged.As the problem in this case is 3.93 and the number in the second decimal place is less than 5, we end up with3.9 "correct to one decimal place" or "rounded to one decimal place".