Let's solve each word problem step by step and explain the solution.
---
1. Alex has 13 baseball cards, and he gives 8 of them to his brother. How many baseball cards does he have left?
Solution:
Alex starts with 13 baseball cards.
He gives away 8.
To find how many he has left, subtract:
$$
13 - 8 = 5
$$
✔ Answer: Alex has
5 baseball cards left.
---
2. There are 16 students in a classroom, and 4 of them are absent today. How many students are present?
Solution:
Total students = 16
Absent students = 4
To find the number present, subtract the absent ones:
$$
16 - 4 = 12
$$
✔ Answer: 12 students are present.
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3. Emily has 15 colorful beads, and she wants to string them on a necklace with 4 beads on each string. How many strings of beads can she make, and how many beads will be left?
Solution:
Emily has 15 beads.
Each string uses 4 beads.
We divide 15 by 4 to find how many full strings she can make:
$$
15 ÷ 4 = 3 \text{ remainder } 3
$$
This means she can make
3 full strings, and
3 beads will be left over.
✔ Answer: She can make
3 strings, and
3 beads will be left.
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4. There are 18 cupcakes at the school bake sale. If 7 cupcakes are chocolate, and the rest are vanilla, how many vanilla cupcakes are there?
Solution:
Total cupcakes = 18
Chocolate cupcakes = 7
To find vanilla cupcakes, subtract:
$$
18 - 7 = 11
$$
✔ Answer: There are
11 vanilla cupcakes.
---
Final Answers:
1.
5 baseball cards
2.
12 students present
3.
3 strings,
3 beads left
4.
11 vanilla cupcakes
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Parent Tip: Review the logic above to help your child master the concept of singapore math grade 1 worksheet.