Evaluating Expressions
Calculate the value of: 4 x (15 x 2)
What is 120?
Fill in the blank to make the equation true using doubling and halving:
160 x 14 = 7 x __________
What is 320?
Write a numerical expression with parentheses:
"To compute 18 x 25, double 25 and halve 18."
What is 9 x 50?
A box has 42 tennis balls in a single bottom layer. If the box fits 6 identical layers, how many balls fit in total?
What are 252 balls? (42 x 6)
Five neighbors earned $85.00 altogether mowing lawns and agreed to split the earnings evenly. How much money does each person receive? Write the equation and answer.
What is 85/ 5= $17
Solve: (6 x 2) x 5
What is 60?
True or false? Explain: 54 x 19 = (54 x 20) - (54 x 1)
What is True?
Write a numerical expression with parentheses:
"To compute 33 x 9, take 10 groups of 33 and subtract 1 group of 33."
What is (33 x 10) - (1 x 33)?
A rectangular prism built of unit cubes is 5 units long, 4 units wide, and 3 units tall. Write an equation showing the total number of 1 x 1 x 1 cubes.
What is (5 x 4) x 3= 60 cubes?
A field trip has 115 students going. If each passenger van holds 12 students, how many vans are needed to take everyone? Write the equation and answer.
What is 115/ 12= 9 R 7. You need 10 vans so no student is left behind.
Evaluate this expression:
2 x (4 x 3) + 2 x (4 x 5) + 2 x (3 x 5)
What is 94?
True or False? Explain: (3 x 6) x 5= 3 x (6 x 5)
Write a numerical expression:
"To find the volume of a container with a 14 by 18 base and a height of 12 layers, multiply the base dimensions first, then multiply by the layers."
What is (14 x 18) x 12?
A box holds 288 juice boxes. Each layer contains 24 juice boxes. How many layers does the box have?
What are 12 layers ( 288 / 24 = 12)?
Four friends earned $58.00 total doing yard work and want to split the cash evenly. How much whole dollar money does each person receive, and how many dollars are left over to save? Write the equation and answer.
What is 58/ 4= $14 per person, with $2 left over?
Calculate: (40 x 48) - (1 x 48)
What is 1,872?
True or False? Explain: 28 x 14= (28 x 14) + (1 x 14)
What is False?
Adding an extra 14 makes it 29 x 14, not 28 x 14.
Write AND solve an equation using doubling and halving to solve 28 x 25.
What is 28 x 25= 14 x 50= 7 x 100= 700?
A storage crate has a base measuring 8 cm by 5 cm and a height of 4 cm. Write an equation to find the total volume in cubic units.
What is (8 x 5) x 4= 160 cm3
A crate contains 350 apples. If 25 apples fit in each packing tray, how many trays are inside the crate?
What is 350/ 25= 14 trays?
Fill in the blank to make this true: ______ x 36 = 18 x 18 = 324
What is 9?
Fill in the missing value: 38 x 99 = (_____ x 38)- (1 x 38)
What is 100?
Write AND solve an equation:
"To solve 16 x 35, find 10 times 35 and add it to 6 times 35."
What is (10 x 35) + (6 x 35) = 350 + 210= 560?
Prism A is 3 units tall with a 7 x 7 base. Prism B is 3 units tall with an 8 x 6 base. Which prism holds more unit cubes?
What is Prism A, which holds 147 cubes (49 x 3) while Prism B holds only 144 cubes ( 48 x 3)?
A camp has 130 campers going kayaking. Each large kayak carries 14 campers. How many kayaks must be rented, and how many campers will be in the partially filled kayak?
What is 130/ 14= 9 R 4? 10 kayaks are needed, and the last kayak will have 4 campers.