Here are the step-by-step solutions for each word problem on the worksheet.
1. Mowing Lawns
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Step 1: Find out how many minutes it takes to mow one lawn. Since there are 60 minutes in an hour and he mows 6 lawns in that time, divide 60 by 6.
* $60 \div 6 = 10$ minutes per lawn.
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Step 2: Multiply the time per lawn by the total number of lawns (21).
* $10 \times 21 = 210$ minutes.
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Step 3: Convert minutes back into hours. Divide 210 by 60.
* $210 \div 60 = 3.5$ hours.
2. Food Drive Cartons
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Step 1: Identify the total number of cans collected (320) and how many cans fit in one carton (40).
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Step 2: Divide the total cans by the number of cans per carton to find the number of cartons needed.
* $320 \div 40 = 8$ cartons.
3. Birthday Gifts Cost
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Step 1: Calculate the cost for Molly. She got 3 gifts at $\$24$ each.
* $3 \times 24 = \$72$.
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Step 2: Calculate the cost for Mary. She got 5 gifts at $\$18$ each.
* $5 \times 18 = \$90$.
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Step 3: Add the two amounts together to find the total spent.
* $72 + 90 = \$162$.
4. School Buses
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Step 1: Identify the total number of students (125) and the capacity of one bus (48 students).
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Step 2: Divide the students by the bus capacity.
* $125 \div 48 = 2$ with a remainder of 29.
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Step 3: Interpret the result. You have 2 full buses, but you still have 29 students left over. You cannot leave them behind, so you need one more bus.
* $2 + 1 = 3$ buses.
5. Report Card Average
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Step 1: Add up all four math marks: 97, 78, 84, and 86.
* $97 + 78 + 84 + 86 = 345$.
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Step 2: Divide the total sum by the number of marks (4) to find the average.
* $345 \div 4 = 86.25$.
6. Swimming Pass Payments
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Step 1: Identify the total cost ($\$390$) and the number of payments (12).
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Step 2: Divide the total cost by the number of payments to find the monthly amount.
* $390 \div 12 = 32.5$.
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Step 3: Format the answer as money.
* $\$32.50$.
Final Answer:
1. 3.5 hours
2. 8 cartons
3. $162
4. 3 buses
5. 86.25
6. $32.50
Parent Tip: Review the logic above to help your child master the concept of 5th grade math word problems worksheet.
