Question

Round off to the nearest $10$, what numbers could be estimated as $1600$.

Answer 1

Estimating to nearest $10$:

To round off to the nearest $10$, look at the digit in the units column. If it is less than $5$, round down. If it is more than or equal to $5$, round up.

So, $1595,1596,1597,1598,1599$ having the unit digit greater than or equal to $5$ are rounded up to $1600$ and $1600,1601,1602,1603,1604$ having unit digit less than $5$ are rounded down to $1600$.

Thus, numbers that could be estimated as $1600$ are $1595,1596,1597,1598,1599,1600,1601,1602,1603,1604$.