Multiply and Divide Whole Numbers, Decimals, and Fractions

Jessica buys 40 meters of scotch tape. How many centimeters of scotch tape did she buy? (100 cm = 1 m)

• 4,000 cm

• 400 cm

• 40 cm

Answer explanation

1 meter = 100 cm.

40 meters = 40 x 1 m

= 40 x 100 cm

= 4,000 cm

Payton needs 3 gallons of milk to make cookies. Each batch of cookies uses 2 cups of milk. How many batches of cookies can Payton make? (16 cups = 1 gallon)

• 15 batches

• 23 batches

• 24 batches

Answer explanation

2 step problem.

1. Change the 3 gallons to cups.

16 cups per gal x 3 gallons = 48 cups

2. Then take the 48 cups divided by 2 (since you need 2 cups of milk per batch). Then you should have an answer of 24 batches.

Looking for patterns:

$2.50, $4.00, $5.50, __________, _____________

If the pattern continues, what will be the FIFTH dollar amount?

• $8.50

• $7.00

• $7.50

5.32 + 2.5 =

• 5.57

• 7.82

• 5.57

Charlie used the base ten blocks to build a number. (See image.) THEN he subtracted 0.11 from the number. What number does Charlie have now?

• 0.12

• 0.23

• 0.22

Answer explanation

The original model shows 0.23

Then when he subtracted 0.11 from it, he would have removed 1 of the tenths rods and one of the hundredths cubes thus leaving 0.12

 $300\ \times\ 20\ =$  

• 280

• 320

• 6,000

 $125\ \times\ 30\ =$  

• 155

• 1,875

• 3,750

 $1,425\ \div15\ =$  

• 1,440

• 1,410

• 95

A school cafeteria has 294 chairs. There are 14 chairs at each table. Two chairs will be removed from each table and put into a storage room. How many chairs will be left in the cafeteria? (Hint: Find out how many tables are there by dividing 294 by 14. Then take 2 chairs away from EACH table. Then calculate how many chairs are left out of 294.)

• 252

• 266

• 294

 $Which\ \ model\ \ corrrectly\ \ shows\ \ \frac{1}{2}of\ \frac{2}{3}?$ 

• 
• 
•