Question

topic: estimation with decimals
progress:
the movement of the progress bar may be uneven because questions can be worth more or less (including zero) depending on your answer
tanisha lives in an apartment and pays the following expenses each month: electric bill, $42.60; tv streaming service, $27.99;
and rent, $587.70. estimate her total expenses for the month by first rounding each value to the nearest tens place.
$650
$660
$659
$670

Explanation:

Step1: Round each expense

• Electric bill: $\$42.60\approx\$40$ (since $2<5$)
• TV streaming service: $\$27.99\approx\$30$ (since $7\geq5$)
• Rent: $\$587.70\approx\$590$ (since $7\geq5$)

Step2: Sum the rounded values

$$40 + 30+590=(40 + 30)+590=70 + 590 = 660$$

Answer:

$\$660$