Let’s go through each problem one by one. I’ll show my work so you can follow along and check your own answers.
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Problem 1:
The zoo closes at 5:00 p.m. It takes 3½ hours to feed all the animals after closing. At what time do the zookeepers finish feeding?
→ Start at 5:00 p.m.
→ Add 3 hours → 8:00 p.m.
→ Add ½ hour → 8:30 p.m.
✔ Final Answer for #1:
8:30 p.m.
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Problem 2:
The Indian elephant eats:
- 28 pounds of grain
- 12 pounds of fruit and vegetables
- 14 pounds of grass
- 80 pounds of hay
Add them up:
28 + 12 = 40
40 + 14 = 54
54 + 80 = 134
✔ Final Answer for #2:
134 pounds
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Problem 3:
Each sea lion eats 10 pounds of fish a day. There are 6 sea lions.
Multiply: 10 × 6 = 60
✔ Final Answer for #3:
60 pounds
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Problem 4:
It takes about 270 days for an otter to grow before birth. How many months is this?
We know: 1 month ≈ 30 days (for estimation in school problems)
So: 270 ÷ 30 = 9
✔ Final Answer for #4:
9 months
*(Note: In real life, months vary, but for math class, we use 30 days per month unless told otherwise.)*
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Problem 5:
It takes 1¼ years for a baby giraffe to be born. How many months is that?
1 year = 12 months
¼ year = 12 ÷ 4 = 3 months
So: 12 + 3 = 15 months
✔ Final Answer for #5:
15 months
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Problem 6:
Omar the gorilla eats:
- 4 carrots
- 4 oranges
- 1 yam
- 3 apples
- 2 bananas
- 6 grapes
All of these are fruits or vegetables. Let’s add:
4 + 4 = 8
8 + 1 = 9
9 + 3 = 12
12 + 2 = 14
14 + 6 = 20
✔ Final Answer for #6:
20 fruits and vegetables
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Solve the following:
Problem 7:
137
+ 5
= ?
Start from right: 7 + 5 = 12 → write down 2, carry over 1
Then: 3 + 1 (carry) = 4
Then: 1 stays as 1
Answer: 142
✔ Final Answer for #7:
142
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Problem 8:
Divide 95 by 5.
How many times does 5 go into 9? → 1 time (5×1=5), remainder 4
Bring down 5 → makes 45
5 goes into 45 nine times (5×9=45)
So: 19
✔ Final Answer for #8:
19
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Problem 9:
105
– 38
= ?
Start from right: 5 – 8 → can’t do, borrow from tens place
Tens place is 0 → need to borrow from hundreds
Hundreds: 1 becomes 0
Tens: 0 becomes 10, then lend 1 to ones → tens become 9, ones become 15
Now: 15 – 8 = 7
Tens: 9 – 3 = 6
Hundreds: 0 – 0 = 0 (don’t write leading zero)
Answer: 67
✔ Final Answer for #9:
67
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Problem 10:
213
× 8
= ?
Multiply each digit by 8, starting from right:
3 × 8 = 24 → write 4, carry 2
1 × 8 = 8 + 2 (carry) = 10 → write 0, carry 1
2 × 8 = 16 + 1 (carry) = 17 → write 17
So: 1704
✔ Final Answer for #10:
1704
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Final Answer:
1. 8:30 p.m.
2. 134 pounds
3. 60 pounds
4. 9 months
5. 15 months
6. 20 fruits and vegetables
7. 142
8. 19
9. 67
10. 1704
Parent Tip: Review the logic above to help your child master the concept of career information math worksheet.
