I have a unit test and I need help
Michael put the following items in his shopping basket.
Juice $3.98
Sandwich $4.19
Chips $0.79
What is the best estimate of the sum of the items to the nearest whole number?
A.
$7
B.
$8
C.
$9
D.
$10
To find the best estimate of the sum of the items, you need to add up the prices and round it to the nearest whole number.
Let's add up the prices:
Juice: $3.98
Sandwich: $4.19
Chips: $0.79
Total sum = $3.98 + $4.19 + $0.79
To find the sum to the nearest whole number, we round it.
Now, when rounding, a general rule is to round up if the decimal is 0.5 or higher, and round down if the decimal is less than 0.5.
In this case, the sum is $9.96, which has a decimal above 0.5. So, we need to round it up to the nearest whole number, which is 10.
Therefore, the best estimate of the sum of the items to the nearest whole number is $10.
So, the correct answer is D. $10.