Unit 7 Quiz Review

Rounding Numbers

​Rounding up and down

0-4, Round DOWN
5-9, Round UP

Place Value

Terms for Mathematical Operations

Fill in the Blank

What is the product of 5.56 and 3.22 rounded to the tenths place?

.

Fill in the Blank

What is the total of 4.328 and 17.889 rounded to the hundredths place?

.

Multiple Choice

In the number 0.000673, when written in scientific notation will there be a positive or negative exponent?

• Positive Exponent

• Negative Exponent

Multiple Choice

Which of the following shows 15003558 in scientific notation, rounded to the tenths place?

• 1.5 x 10^-7

• 1.50 x 10⁷

• 1.50 x 10^-7

• 1.5 x 10⁷

Multiple Choice

If you multiply 4.22 x 10²³ by 6, what is your product (rounded to the hundredths place)?

• 2.53 x 10²⁴

• 2.53 x 10²³

• 2.54 x 10²⁴

• 2.5 x 10²³

​Dimensional Analysis/Unit Conversions

1. Identify your given

2. Identify your desired unit

3. Set up conversion factors so that the same units will cancel diagonally

4. Multiply everything on top, divide by everything on the bottom.

Multiple Choice

David has a bag of flour that weighs 5 pounds. If 1 pound is equal to 453.592 grams, how many grams of flour does David have?

• 90.72 g

• 0.011 g

• 2,267.96 g

Multiple Choice

We want to convert 2.5 yards to inches. 1 yard = 3 feet, 1 foot = 12 inches. Which problem is set up correctly?

Multiple Choice

Stephanie orders balloons for a party. She orders 3 cases of balloons. Each case contains 5 packs of balloons. Each pack contains 2 bundles of balloons. 1 bundle = 50 balloons. How many balloons did Stephane buy?

• 375 balloons

• 1500 balloons

• 750 balloons

• 125 balloons

Multiple Choice

Convert 130mL into gallons. 1000mL = 1 L, 1 L = 0.26 gal

• 0.0338 gal

• 33,800 gal

• 0.5 gal

• 2 gal

Math of Chemistry Quiz

​In Canvas, complete the Math of Chemistry Quiz

1. You can use a calculator and scratch paper

2. Quizzes are independent- no notes, no Google, no friends

3. Be careful when typing any answers!