Marvelous Multiplication
What is 25 × 4?
100
What is 81 ÷ 9?
What formula do we use to find volume?
Volume = length × width × height
What is the area of a rectangle that’s 8 in long and 6 in wide?
48 square inches
True or False: 4 × (6 + 2) = (4 × 6) + (4 × 2)
True
Which is the same as (400 × 3) + (20 × 3) + (7 × 3)?
427 × 3
525 ÷ 15 = ?
35
A box is 2 ft × 3 ft × 4 ft. What is its volume?
24 cubic feet
What is the base area of a prism that’s 5 cm × 4 cm?
20 square cm
Which expression is equivalent to 256 ÷ 8?
32
Solve: 46 × 32
1,472
There are 216 books on a shelf. If each shelf holds 12 books, how many shelves are needed?
18 shelves are needed
A prism has 4 layers with 3 cubes in each layer. What is its volume?
12 cubic units
A prism has a base area of 15 m² and a height of 10 m. What’s its volume?
150 m³
Fill in the blank to make this true: 9 × ___ = 450 ÷ 10
5
A class has 28 desks. Each desk costs $45. What’s the total cost?
$1,260
Explain what the dividend and divisor are in a division problem.
Dividend = number being divided; Divisor = number dividing it
A tank measures 5 m long, 2 m wide, and 3 m tall. What’s its volume?
30 cubic meters
True or False: Volume is measured in square units.
False (it’s cubic units)
Which is equivalent to (500 + 20 + 6) × 3?
(500 × 3) + (20 × 3) + (6 × 3)
Use the distributive property (break apart the numbers) to solve 238 × 12.
(238 × 10) + (238 × 2) = 2,380 + 476 = 2,856
A bakery made 936 muffins. They pack 24 per box. How many boxes do they need?
39 boxes
If you double the height of a rectangular prism, what happens to its volume?
The volume also doubles.
Describe the difference between area and volume using your own words.
Area measures surface; volume measures space inside.
Write and solve your own equation that uses both multiplication and addition.
Answers vary — e.g. 7 × 4 + 12 = 40