List all the numbers which can be rounded off to $30$.

Estimate the sum of pair of numbers to the nearest ten:

$67$ and $44$

Estimate the sum of pair of numbers to the nearest ten:

$34$ and $87$

Estimate the sum of pair of numbers to the nearest ten:

$23$ and $66$

Estimate the sum of pair of numbers to the nearest ten:

$78$ and $18$

Estimate the sum of pair of numbers to the nearest ten:

$96$ and $55$