Roberto spent $49.62 for 6 t-shirts. Which number sentence shows the best way to estimate the cost of each t-shirt
A:$45 divided by 5 = $9
B:$48 divided by 6 = $8
C:$50 divided by 10 = $5
D:$50 divided by 5 = $10
When estimating, you typically round numbers to make the calculations easier to do mentally. The total cost Roberto spent, which is $49.62, can be rounded to the nearest easy-to-divide number, and the quantity of t-shirts (6) can be kept the same since it's already a nice round number.
From the options given, the best way to estimate the cost of each t-shirt that follows this rounding logic would be:
B: $48 divided by 6 = $8
This option involves rounding $49.62 to the nearest easy number to work with, $48, and dividing by the actual number of t-shirts, 6, which provides an estimate that's close to the exact answer.
The exact cost of each t-shirt is $49.62 divided by 6, which is approximately $8.27. The estimation given by option B provides an approximate answer without the need for precise calculation or a calculator.