Fill in the blanks.
1 minute = ___ seconds
___ minutes = 360 seconds
1 minute = 60 seconds
6 minutes = 360 seconds
Use the distributive property to complete the equations.
40 x 72 = 40 x (70 + 2)
= (40 x __) + (40 x __)
= ____ + ____
= _____
40 x 72 = 40 x (70 + 2)
= (40 x 70) + (40 x 2)
= 2,800 + 80
= 2,880
46 ÷ 9
Solve and label each part of the equation using the word bank below.
- quotient
- remainder
- dividend
- divisor
46 ÷ 9 = 5 R1
46 = dividend
9 = divisor
5 = quotient
1 = remainder
Emma bakes 180 cookies. She puts 6 cookies in each bag. She sells each bag for $4. How much money does she earn?
Emma earns $120.
180 cookies ÷ 6 cookies per bag = 30 bags
30 bags x $4 = $120
Explain the error and find the correct solution to 63 x 24.
The student incorrectly broke apart 63 into 6 + 3 and 24 into 2 + 4. He should have broken them into 60 + 3 and 20 + 4.
The correct solution is 1,512.
Fill in the blanks.
1 hour = ___ minutes
___ hours = 540 minutes
1 hour = 60 minutes
9 hours = 540 minutes
Draw an area model to solve.
48 x 63
3,024
Shen has 95 meters of string. He needs pieces that are 6 meters long.
How many pieces can Shen make that are 6 meters long?
How much string is left over?
Shen can make 15 pieces that are 6 meters long.
There is 5 meters of string leftover.
Anna makes 120 cups of lemonade. She pours the lemonade into pitchers, with 8 cups per pitcher. She sells each pitcher for $6. How much money does she earn?
Anna earns $90 from selling lemonade.
120 cups ÷ 8 cups per pitcher = 15 pitchers
15 pitchers x $6 = $90
Explain the error and find the correct solution to 43 x 56.
This student forgot to carry the 1 from the tens to the hundreds place while adding together the partial products.
The correct solution is 2,408.
1 kg = ___ g
___ kg = 51,000 g
1 kg = 1,000 g
51 kg = 51,000 g
Use vertical form to solve.
92 x 52
4,784
Ms. Wong has 424 books. She puts an equal number of books into each of the 8 boxes. How many books are in each box?
There are 53 books in each box.
A school sells 250 raffle tickets. Each ticket costs $5. The school spends $600 of the ticket sales on prizes. How much profit does the school make?
The school makes $650 in profit.
250 tickets x $5 = $1,250 in ticket sales
$1,250 - $600 for prizes = $650 profit
Explain the error and find the correct solution to 72 x 38.
The student incorrectly multiplied 70 x 8 to get the partial product of 56, which should have been 560.
The correct solution is 2,736.
1 L = ___ mL
___ L = 34,000 mL
1 L = 1,000 mL
34 L = 34,000 mL
Use the distributive property to complete the equations.
83 x 36 = (30 + 6) x 83
= (30 x 83) + (6 x 83)
= 30 x (__ + __) + 6 x (__ + __)
= (30 x __) + (30 x __) + (6 x __) + (6 x __)
= _____ + _____ + _____ + _____
= _____
83 x 36 = (30 + 6) x 83
= (30 x 83) + (6 x 83)
= 30 x (80 + 3) + 6 x (80 + 3)
= (30 x 80) + (30 x 3) + (6 x 80) + (6 x 3)
= 2,400 + 90 + 480 + 18
= 2,988
Tina has 9 ribbons of equal length. The total length of her ribbons is 9,792 centimeters.
What is the length of each ribbon?
Each ribbon is 1,088 centimeters long.
Jacob collects 2,250 books for a fundraiser. Each book sells for $3. The fundraiser's goal is to raise $10,000. How much more money does Jacob need to reach the goal?
Jacob needs $3,250 more to reach the fundraiser goal.
2,250 books x $3 = $6,750 raised
$10,000 - $6,750 = $3,250
Explain the error and find the correct solution to 1,526 ÷ 8.
The student incorrectly put the 9 in the ones place after dividing 736 by 8. They continued with 9 x 8 = 720. They should have written the 9 in the tens place to make it 90.
The correct solution is 192.
A baseball team drinks 18 L of sports drink at their game. A football team drinks 26,000 mL of sports drink at their game. How many more liters of sports drink does the football team drink than the baseball team?
The football team drinks 8 liters more than the baseball team.
26,000 mL = 26 L
26 L - 18 L = 8 L
The Oak Grove school district just bought new school buses. They bought 16 large buses that can carry 72 students each. How many students can all of the buses fit?
The buses can fit 1,152 students.
A farmer has 6,878 kilograms of rice to pack into bags. Each bag holds 4 kilograms of rice.
How many bags does the farmer need to hold all the rice?
The farmer needs 1,720 bags to hold all of the rice.
(1,719 full bags, plus 1 bag that is half full)
Sophia collects 2,200 crayons for a school supplies drive. She organizes the crayons into packs, with 8 crayons in each pack. Sophia distributes the packs equally among 9 classrooms. How many packs are not given to a classroom?
There are 5 packs of crayons not given to a classroom.
2,200 crayons ÷ 8 crayons per pack = 275 packs
275 packs ÷ 9 classrooms = 30 packs per classroom (5 packs leftover)
Explain the error and find the correct solution for 2,625 ÷ 5.
This student stopped before the work was done. He should have kept going, dividing 25 by 5 to get 5.
The correct solution is 525.