Not if you have to make up days.
tens
Tens
tens
There are 7 days in a week.
There is only one ten in 19, while there are also 9 units as well, if you want any extra information.
Depends what you refer as "olden days". Earth is billions of years old and the human race is tens of thousands of years old.
The cost of school varies depending on the type of school and location. On average, public schools are free for students, while private schools can range from a few thousand to tens of thousands of dollars per year. College tuition can range from a few thousand to tens of thousands of dollars per year as well.
17 tens = (10 + 7) tens = 10 tens + 7 tens = 1 hundred + 7 tens.
Provided it is tens, 880. If it were tenths, 884.7 Don't add any any extra zeroes, because that implies it's more accurate than it really is. e.g. 884.70 implies the number has been measured or rounded to the nearest hundredth.
There are 9 hundreds in 900. To find out how many tens are in 900, we need to divide 900 by 10. 900 divided by 10 equals 90, so there are 90 tens in 900.
7
6 tens