If the question requires you to do so. For example, leave your answer to 3 Significant figures . And your answer is a 35. So when they say leave it to 3 significant figure, you write it as 35.0. But most of the time, you don't need the 0 after the decimal.
Move the decimal point one place to the right. If the decimal point is already at the end of the number, add a 0 to the extreme right before moving the decimal point.
Since 637 is an integer, it is 0.
No, but it ensures that the preceding decimal point is not overlooked.
8.0 x 10-7To write this in standard form we need to have one digit (not a 0) in front of the decimal point. We can do this here by moving the decimal point 7 places to the right. As we are moving the decimal point 7 places to the right we are making the number 107 times as large. Therefore we need to multiply by 10-7 to get back to the original number.
If the power of ten is k, where k is an integer thenif k < 0 then the decimal point moves k places to the left;if k = 0 then the decimal point does not move; andif k > 0 then the decimal point moves k places to the right.
3000.0 * * * * * Alternative answer: it is just 3000. There is no need for a decimal point and a 0 after the decimal point is misleading: it suggests a greater degree of precision. A decimal is simply a way of representing a number so that the place value of each digit is ten times the place value of the digit to its right.
0.3 is a decimal. The decimal point is the (.) between the 0 and the 3.
12.9 % Move decimal point two to the right (as there are two 0 in 100)
The digits from 0 to 9, and the decimal point (or comma, depending on the country).The digits from 0 to 9, and the decimal point (or comma, depending on the country).The digits from 0 to 9, and the decimal point (or comma, depending on the country).The digits from 0 to 9, and the decimal point (or comma, depending on the country).
1.5. To convert a percent into a decimal, you simply have to move the decimal point two places to the left. Since right now the decimal point is after the 0 in 150, moving it two to the left would make it 1.50.
Do you know what a decimal place is? You need to know the theory first. The decimal point is represented by a full stop between 5 and 0 in this number. Rounding is the practise of simplifying numbers to their nearest common number (specified in the question, to the nearest 10/100 etc...). In this example the second decimal place is the 7, you need to simplify to this point by rounding its neighbours to the right to their nearest 10... I.E. the 2 rounds to 0. <5 rounds to 0, > or equal to 5 rounds to 10. Your answer is 15.07.
number, decimal = 0