Let's solve the problem step by step using the
tally graph provided in the image.
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🔹 Step 1: Interpret the Tally Marks
Each tally mark represents one animal. A group of five is typically shown as four vertical lines and one diagonal line across them (like `####|`).
Let’s count each category:
-
Hermit Crabs: `# # # # |` → This is
5 (since it's a full group of 5).
-
Clams: `| | |` → This is
3.
-
Starfish: `# # # # | | | |` → That’s 5 + 4 =
9
-
Jellyfish: `# # # # | |` → That’s 5 + 2 =
7
So we have:
- Hermit Crabs:
5
- Clams:
3
- Starfish:
9
- Jellyfish:
7
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🔹 Step 2: Answer the Questions
####
1. How many hermit crabs are at the beach?
✔ Answer: 5
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####
2. How many clams and jellyfish are there altogether at the beach?
Add clams and jellyfish:
- Clams: 3
- Jellyfish: 7
- Total: 3 + 7 =
10
✔ Answer: 10
---
####
3. How many total animals are on the beach altogether?
Add all animals:
- Hermit Crabs: 5
- Clams: 3
- Starfish: 9
- Jellyfish: 7
Total: 5 + 3 + 9 + 7 =
24
✔ Answer: 24
---
####
4. How many more starfish are there than clams?
- Starfish: 9
- Clams: 3
- Difference: 9 - 3 =
6
✔ Answer: 6
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🔹 Step 3: Create a Bar Graph (Instructions)
Now, you’ll create a
bar graph to match the data. Here’s how to do it:
You have four categories:
Hermit Crabs,
Clams,
Starfish,
Jellyfish
Label the
x-axis with these names.
Label the
y-axis with numbers from 0 to 10 (since the highest number is 9).
Draw bars for each:
- Hermit Crabs: height of
5
- Clams: height of
3
- Starfish: height of
9
- Jellyfish: height of
7
Make sure the bars are proportional and clearly labeled.
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✔ Final Answers:
1.
5 hermit crabs
2.
10 clams and jellyfish together
3.
24 total animals
4.
6 more starfish than clams
And then draw the bar graph accordingly.
Let me know if you'd like a visual sketch or help drawing it!
Parent Tip: Review the logic above to help your child master the concept of create a math worksheet.
