The answer is 90, 25, 155, 115 respectively
Is it 2 different questions or just one?
We can break down the number 6647 into:
6647=6000+600+40+7
The first 6 in the number is in the thousands place (6,000), and the second 6 is in the hundreds place (600).
The first 6 is 10 times greater than the second one.
Expanded form:
9.0+0.80+0.05