bhaskar
The Arabs. Roman mathematics suffered from lack of a zero. They could not do multiplication or division.
Two of them are terminating decimals and recurring decimals
You need decimals when you measure and fractions. You need decimals, because to measure and fractions. Also, so whole numbers could exist if there are decimals. There will be no math if there's no decimals.
terminating decimals repeating decimals
Some decimals are. Counting numbers are a proper subset of decimals.
The Arabs. Roman mathematics suffered from lack of a zero. They could not do multiplication or division.
terminating decimals and repeating decimals
terminating decimals non terminating decimals repeating decimals non repeating decimals
Two of them are terminating decimals and recurring decimals
Terminating decimals are decimals that end, such as, 2.384. Non-terminating decimals that don't end, such as, 0.3333333333.......
6.7,6.8,6.4,5.9
The answer depends on what you wish to do with decimals.
You need decimals when you measure and fractions. You need decimals, because to measure and fractions. Also, so whole numbers could exist if there are decimals. There will be no math if there's no decimals.
3rd. Adding Decimals 5th - Adding and subtracting 6th - Dividing Decimals
terminating decimals repeating decimals
Some decimals are. Counting numbers are a proper subset of decimals.
Some decimals repeat. Some decimals go on forever. Some decimals stop. Those are called terminating decimals.