# G7 Intro Unit 4 Review

- Author:
- Joseph Reese

Find the products mentally: 1. 2.

Han and Clare go shopping, and they each have a coupon. Han buys an item with a normal price of $15, and uses a 10% off coupon. How much does he save by using the coupon? Show or explain your reasoning.

Han and Clare go shopping, and they each have a coupon. Clare buys an item with a normal price of $24, but saves $6 by using a coupon. For what percentage off is this coupon? Show or explain your reasoning.

It takes Jada 20 minutes to walk to school. It takes Andre 80% as long to walk to school. How long does it take Andre to walk to school?

For each problem, explain or show your reasoning.

- 160 is what percentage of 40?
- 40 is 160% of what number?
- What number is 40% of 160?

A store is having a 20%-off sale on all merchandise. If Mai buys one item and saves $13, what was the original price of her purchase? Explain or show your reasoning.

The original price of a scarf was $16. During a store-closing sale, a shopper saved $12 on the scarf. What percentage discount did she receive? Explain or show your reasoning.

Select all the expressions whose value is larger than 100.

Evaluate/Solve mentally. 1. 20 * 5 2. 20 * (0.8) 3. 20 * (0.04) 4. 20 * (5.84)

Calculate each product. NO CALCULATORS. 1. 2.

Calculate each product. Show your reasoning. 1. (5.6) * (1.8) 2. (0.008) * (7.2) 3. (1.6) * (0.215)

Write the following expressions as decimals. NO CALCULATOR. 1) 1 - 0.1 2) 1 - 0.1 + 10 - 0.01 3) 1 - 0.1 + 10 - 0.01 + 100 - 0.001

Find the quotients mentally. 1) 2) 3) 4)

Using long division like Lin did, find the value of each expression as a decimal. 1) 2) 3) 4) 5) 6)

Mai walked of a 30-mile walking trail. How many miles did Mai walk? Explain or show your reasoning.