Here are the step-by-step solutions for each problem on the worksheet.
1. Ellen went to a garage sale to buy chairs. Each chair cost 15 dollars. How much money did Ellen spend for the 12 chairs she bought?
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Step 1: Identify the numbers. The cost per chair is $15, and the number of chairs is 12.
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Step 2: Multiply the cost by the quantity: $15 \times 12$.
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Step 3: Calculate.
* $10 \times 15 = 150$
* $2 \times 15 = 30$
* $150 + 30 = 180$
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Result: Ellen spent $180.
2. Three-toed sloths have four legs. How many toes would 25 sloths have?
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Step 1: Find out how many toes one sloth has. The name "three-toed" means each foot has 3 toes. Since they have 4 legs (and therefore 4 feet), we multiply: $3 \text{ toes} \times 4 \text{ feet} = 12 \text{ toes per sloth}$.
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Step 2: Multiply the toes per sloth by the total number of sloths (25).
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Step 3: Calculate $12 \times 25$.
* Think of it as quarters: 4 quarters make a dollar (100 cents). So, $25 \times 4 = 100$.
* We need $25 \times 12$. Since $12$ is $3 \times 4$, we can do $100 \times 3 = 300$.
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Result: There are 300 toes.
3. Albert has two snakes. The garden snake is 10 inches long. The boa constrictor is 7 times longer than the garden snake. How long is the boa constrictor?
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Step 1: Identify the length of the garden snake: 10 inches.
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Step 2: Identify the multiplier for the boa constrictor: 7 times longer.
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Step 3: Multiply the lengths: $10 \times 7$.
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Result: The boa constrictor is 70 inches long.
4. Albert’s cabbage patch has 12 rows of cabbage. In each row, there are 15 heads of cabbage. How many heads of cabbage does Albert have in all?
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Step 1: Identify the number of rows (12) and the number of cabbages per row (15).
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Step 2: Multiply to find the total: $12 \times 15$.
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Step 3: Calculate.
* $10 \times 15 = 150$
* $2 \times 15 = 30$
* $150 + 30 = 180$
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Result: Albert has 180 heads of cabbage.
5. Marie can bike at a speed of 12 miles an hour. How far can she bike in 31 hours?
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Step 1: Identify the speed (12 miles/hour) and the time (31 hours).
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Step 2: Multiply speed by time to get distance: $12 \times 31$.
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Step 3: Calculate.
* $12 \times 30 = 360$
* $12 \times 1 = 12$
* $360 + 12 = 372$
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Result: She can bike 372 miles.
Final Answer:
1. $180
2. 300 toes
3. 70 inches
4. 180 heads of cabbage
5. 372 miles
Parent Tip: Review the logic above to help your child master the concept of 4th grade math word problems worksheet pdf.
