Round each to the nearest ten dollars, then estimate the answer.

Question

$88.99=---dollars
+9.69=---dollars
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Total is about---Dollars.

$34.00=----dollars
-19.29=----dollars
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Differences is about-----dollars.

Answer 1

88.99 = about 90.
9.69 = about 10.
90+10 = about $100.

Now you do the subtraction one.

Answer 2

88.99 roundes to 90.00 and 9.69 roundes to 100.00

10.00