5
nbb
5 Got it right!
There are ten (10) thousands in ten thousand.
25 ten thousands
30
Seven ten thousands thousands make seventy million.
15 ten or 150 of them.
1000 thousands are there in ten lakhs.
There are 100 ten-thousands in 1 million.
Since 7,000 < 10,000, there are 0 ten thousands in 7,000.
800,000 ten-thousands are in 8 billion.