Let's solve each problem step by step and identify the "trick" problem that is not a multiplication problem.
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Problem 1:
A ream (500 sheets) of paper is 4cm thick. How thick would 13 reams be?
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Step 1: Determine the thickness of one ream.
- Thickness of one ream = 4 cm
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Step 2: Calculate the thickness of 13 reams.
- Thickness of 13 reams = \( 13 \times 4 \) cm
- \( 13 \times 4 = 52 \) cm
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Answer: The thickness of 13 reams is
52 cm.
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Problem 2:
You get 8 apples in a bag. How many apples in 7 bags?
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Step 1: Determine the number of apples in one bag.
- Apples in one bag = 8
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Step 2: Calculate the number of apples in 7 bags.
- Apples in 7 bags = \( 7 \times 8 \)
- \( 7 \times 8 = 56 \)
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Answer: There are
56 apples in 7 bags.
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Problem 3:
I share 24 chocolates equally between my 3 friends. How many chocolates do they each get?
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Step 1: Determine the total number of chocolates.
- Total chocolates = 24
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Step 2: Divide the chocolates equally among 3 friends.
- Chocolates per friend = \( 24 \div 3 \)
- \( 24 \div 3 = 8 \)
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Answer: Each friend gets
8 chocolates.
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Problem 4:
A pen costs $13 to buy. How much would 6 pens cost?
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Step 1: Determine the cost of one pen.
- Cost of one pen = $13
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Step 2: Calculate the cost of 6 pens.
- Cost of 6 pens = \( 6 \times 13 \)
- \( 6 \times 13 = 78 \)
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Answer: The cost of 6 pens is
$78.
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Problem 5:
A PP9 battery has 9 volts. If I connect 7 batteries together, how many volts would the circuit have?
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Step 1: Determine the voltage of one battery.
- Voltage of one battery = 9 volts
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Step 2: Calculate the total voltage when 7 batteries are connected in series.
- Total voltage = \( 7 \times 9 \)
- \( 7 \times 9 = 63 \)
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Answer: The circuit would have
63 volts.
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Problem 6:
How many legs would 15 cats have?
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Step 1: Determine the number of legs one cat has.
- Legs per cat = 4
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Step 2: Calculate the total number of legs for 15 cats.
- Total legs = \( 15 \times 4 \)
- \( 15 \times 4 = 60 \)
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Answer: 15 cats have
60 legs.
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Problem 7:
Tyger downloads 15 new apps a week for his tablet. How many apps will he have after 6 weeks?
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Step 1: Determine the number of apps downloaded per week.
- Apps per week = 15
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Step 2: Calculate the total number of apps downloaded in 6 weeks.
- Total apps = \( 6 \times 15 \)
- \( 6 \times 15 = 90 \)
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Answer: Tyger will have
90 apps after 6 weeks.
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Identifying the Trick Problem:
The trick problem is
Problem 3, which asks, "I share 24 chocolates equally between my 3 friends. How many chocolates do they each get?" This is a
division problem, not a multiplication problem. The other problems involve multiplication.
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Final Answers:
1. \( \boxed{52} \)
2. \( \boxed{56} \)
3. \( \boxed{8} \)
4. \( \boxed{78} \)
5. \( \boxed{63} \)
6. \( \boxed{60} \)
7. \( \boxed{90} \)
The trick problem is
Problem 3.
Parent Tip: Review the logic above to help your child master the concept of math word problems grade 3.
