Sample lesson · Math · Grades 6-8
Ratios, Rates & Percents
Grade 7 unit review on ratios, unit rates, proportions, and percents, including discounts, sales tax, and tips.
- 28 questions
- 5 categories
- 10 games
The questions
Snack Math
- A snack bag has 6 pretzels and 4 crackers. What is the ratio of pretzels to crackers in simplest form?3:2
- The same bag has 4 crackers out of 10 snacks. What is that ratio in simplest form?2:5
- Is 2:3 equivalent to 8:12?Yes
- Solve the proportion: 3/4 = x/20. What is x?15
- A recipe uses 2 cups of flour for every 3 eggs. How many eggs go with 6 cups of flour?9 eggs
How Much for One?
- A car goes 120 miles in 2 hours. What is its speed in miles per hour?60 miles per hour
- You type 150 words in 3 minutes. How many words per minute is that?50 words per minute
- 4 cookies cost $5. How much is one cookie?$1.25
- Juice: 12 ounces for $3, or 16 ounces for $3.20. Which is the better buy?16 ounces for $3.20
Out of 100
- Write 0.45 as a percent.45%
- What is 10% of 80?8
- What is 50% of 64?32
- What is 25% of 48?12
- You got 7 out of 20 questions right. What percent is that?35%
Smart Shopper
- A $40 shirt is 25% off. What is the sale price?$30
- A $20 video game has 5% sales tax. What is the total?$21
- Your meal costs $30 and you leave a 20% tip. How much is the tip?$6
Unit Vocabulary
- What do we call a comparison of two quantities?Ratio
- What do we call a comparison of two quantities with different kinds of units?Rate
- What do we call a rate that tells how much for ONE of something?Unit rate
- What do we call ratios that name the same relationship, like 2:3 and 4:6?Equivalent ratios
- What do we call an equation that sets two ratios equal?Proportion
- What word means "per hundred"?Percent
- What do we call a bar model drawn to show a ratio?Tape diagram
- What tool shows two related quantities on parallel number lines?Double number line
- What do we call the amount taken off a price during a sale?Discount
- What do we call the percent added to a price when you pay?Sales tax
- What do we call extra money you choose to leave for good service at a restaurant?Tip
Plays in
- Quiz Board · The classic review board.
- Mystery Reveal · Guess it before the last clue.
- Tug of War · Every right answer pulls.
- Summit · Play it safe, or go for the steep climb.
- Heist · Steal to win.
- Claim the Grid · Get three in a row before anyone else.
- Board Race · Roll, hop, answer, race to the flag.
- Picture Unveil · What is hiding under the tiles?
- Escape Room · Crack the codes. Get out together.
- Rocket Launch · Fuel up, count down, lift off.
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