Sure! Let’s solve each of the three addition word problems one by one, and I’ll explain the reasoning behind each solution.
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Problem 1:
> Lucy went to the grocery store. She bought 12 packs of cookies and 16 packs of noodles. How many packs of groceries did she buy in all?
✔ Solution:
We need to find the total number of packs Lucy bought. That means we add the packs of cookies and the packs of noodles together.
12 (cookies) + 16 (noodles) = 28
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Answer: Lucy bought 28 packs of groceries in all.
*Explanation:* The key phrase “in all” tells us to add the two quantities together to get the total.
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Problem 2:
> Roden went to a pet shop. He bought 15 gold fish, 7 blue fish and 3 packages of fish food. How many fish did he buy?
✔ Solution:
The question asks specifically for “how many
fish” he bought — not how many items total. So we only count the fish, not the fish food.
15 (gold fish) + 7 (blue fish) = 22
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Answer: Roden bought 22 fish.
*Explanation:* Even though he bought 3 packages of fish food, those are not fish — they’re food for fish. So we ignore them when answering “how many fish.”
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Problem 3:
> I read 21 pages of my English book yesterday in just 45 minutes. Today, I read 117 pages. What is the total number of pages that I read?
✔ Solution:
We want the total number of pages read over both days, so we add yesterday’s pages and today’s pages.
21 (yesterday) + 117 (today) = 138
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Answer: You read a total of 138 pages.
*Explanation:* The time it took (“45 minutes”) is extra information and doesn’t affect the total number of pages read — we only care about adding the page counts from both days.
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✔ Final Answers:
1.
28 packs
2.
22 fish
3.
138 pages
Let me know if you’d like to see these solved with pictures or step-by-step drawings!
Parent Tip: Review the logic above to help your child master the concept of worksheet on addition word problems for grade 2.