Debit vs Credit
What is the main difference between a debit card and a credit card when you make a purchase?
Debit = bank money, Credit = borrowed
Convert 25% to a decimal.
0.25
If 3 apples cost $1.50, what is the unit price per apple?
$0.50
Which measure of center is found by adding all data and dividing by the number of data points?
Mean
Evaluate: 8 + 6 × 2
20
If you buy a $45 item with a debit card and your account has $60, what will your account balance be after the purchase?
$15
Write 0.375 as a percent.
37.5%
Write the ratio "6 minutes to 2 miles" as a unit rate in minutes per mile.
3 min/mile
Find the median: 78, 85, 92, 85, 70
85
Are 3 × (4 + 2) and 3 × 4 + 3 × 2 equal? Explain.
Yes (distributive property)
A credit card statement shows you spent $1200 and your minimum payment is 5% of the balance. What is the minimum payment amount?
$60
Find 15% of $240.
$36
A car travels 210 miles on 7 gallons of gas. What is the unit rate?
30 mpg
Pages read: 15, 20, 20, 5, 10, 20, 10
Find the mode and the mean.
Mode = 20, Mean ≈ 14.29
Simplify: 4(5 + 3)
32
A store offers a 10% discount on a $80 item if you pay with debit. How much do you pay after the discount?
$72
A shirt costs $36 after a 25% markdown. What was the original price?
$48
A recipe uses 2 cups of flour for every 3 cups of sugar. How much flour is needed for 9 cups of sugar?
6 cups
Which is better with an outlier: mean or median? Why?
Median (less affected by outliers)
Write two expressions equivalent to 2(7 + 5) and explain why.
Examples: 14 + 10, 24
Explain one advantage and one disadvantage of using a credit card compared to a debit card.
Build credit vs risk of debt
A student answered 42 out of 50 questions correctly. What percent did they score?
84%
A map scale shows 1 inch : 12 miles. How many miles does 3.5 inches represent?
42 miles
Data: 12, 15, 18, 24, 30
Find the mean. Then explain what happens if 100 is added.
Mean = 19.8 → with 100 becomes ≈ 33.17
Which is larger: 3(4 + 10) or (3 × 4) + 10? Explain.
42 vs 22 → not equal