There are 90,000 (ninety thousand) tens.
90
9
9 of them.
I think you mean HOW many tens make 900, so the answer is 90
There are 99 tens in 990.
900 / 10 = 90There are 90 tens in 9 hundred
9
87.01 rounded to the tens is 90.
990 tens is equivalent to 99 hundreds
90
9 tens is 90. 90 of 70 is 630.