6A Unit 1 Test

Find the product: 0.3 x 0.72

Answer explanation

You should have just typed this problem into your calculator!

Determine whether the equation 3.353 ÷ 4 = 0.88 is true or false.

• True

• False

Answer explanation

If you type it into your calculator correctly, it is 0.83825...

Which expression has a value of 2.125?

• 3.5 x 8

• 4 x 0.5

• 5.625 + 1.75

Answer explanation

Use your calculator!

Find the quotient: 0.124 ÷ 0.16

Answer explanation

Use your calculator!

Heather needs some school supplies. She has a $20.00 bill. If she buys 3 pink erasers, 1 box of pencils, 1 backpack, and 2 notebooks, how much change will she receive?

Pink Erasers -> $0.52

Box of Pencils -> $1.35

Backpack -> $12.95

Notebook -> $0.76

• $4.42

• $2.62

• $15.58

• $17.38

Answer explanation

3 Pink Erasers:

3 x 0.52 = $1.56

Box of Pencils:
$1.35

Backpack:

$12.95

2 Notebooks

2 x 0.76 = $1.52

1.56 + 1.35 + 12.95 + 1.52 = $17.38 total cost

20 - 17.38 = $2.62 change

Dexter wants to buy chairs for his dining room table. He found threedifferent advertisements for dining room chairs. What is the best price for six chairs?

Advertisement 1: $17.65 each chair

Advertisement 2: Buy 5 chairs for $20.54 each. Get the 6th chair free.

Advertisement 3: $19.87 each. Get $17.21 off your total purchase.

• $17.65 for six chairs

• $20.54 for six chairs

• $102.01 for six chairs

• $102.70 for six chairs

Answer explanation

Advertisement 1:

17.65 x 6 = $105.90

Advertisement 2:

20.54 x 5 = $102.70

Advertisement 3:

19.87 x 6 = 119.22 -17.21 = $102.01

Jamie noticed there was already 2.6 inches of rain in the rain gauge. If it rained 0.4 inches every day for a week, what was the total amount of rain in inches?

Answer explanation

There's already 2.6 inches.

There are 7 days in a week. Each day (7 days), it rains 0.4 inches. 0.4 x 7 = 2.8 inches

Add how much there already was (2.6) with how much more rain came throughout the week (2.8).

2.6 + 2.8 = 5.4 inches

What is the greatest common factor (GCF) of 48 and 84?

Answer explanation

List the FACTORS of 48 and 84. They share plenty of factors but 12 is the largest number they both have on their list. Meaning, 12 is the largest number both of those numbers can both be divided by.

Patricia has 14 pygmy goats and 21 dairy goats. She needs to divide the goats into pens so that each pen contains the same number of goats, but the pygmy and dairy goats cannot be in the same pen. What is the greatest number of goats possible in each pen?

• 2 goats

• 7 goats

• 8 goats

• 16 goats

Answer explanation

The key word here is GREATEST.

Remember, factors are numbers that the number we are focused on can be divided by. Patricia is trying to divide her goats by the same number (common factor) that is the GREATEST.

You should have used GCF between 14 and 21 to get 7!

Jalen and Lex worked together today. Jalen works at the store every 6 days, and Lex works every 15 days. How many days until they both work on the same day again?

Answer explanation

Every 6 days is:

6, 12, 18, 24, 30, 36

Every 15 days is:

15, 30, 45

They will both work 30 days from now.