5. Decimals

Add, then estimate to see if your answer is reasonable.

$23.16+15.25$

Add, then estimate to see if your answer is reasonable.

$186.79+7.548$

If $x=3.14$ and $y=12.7$ complete the operation below:

$x+y$

If $a=0.421$ and $b=54.3$ complete the operation below:

$a+a+b$