Math Weekly Practice for Grade 4 - Engaging worksheets with a variety of math exercises to reinforce skills throughout the school year.

It looks like you've uploaded a cover image of the "Math Weekly Practice Grade 4" workbook by Carson Dellosa Education. While this is a promotional or sample page, it includes several math problems and examples. Let's go through each problem shown on the cover and solve them step-by-step.

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🔹 Problem 1: Round to the nearest hundred thousand.

Number: 384,229
Answer: 400,000

✔ Explanation:
To round to the nearest hundred thousand:
- Look at the ten-thousands place (the digit in the 5th position from the right):
In 384,229 → the digit is 8 (in the 80,000 place).
- Since 8 ≥ 5, we round up.
- So, 384,229 rounds to 400,000.

✔️ Correct!

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🔹 Problem 2: Is 17 prime or composite?

Answer: Prime

✔ Explanation:
A prime number has exactly two factors: 1 and itself.
17 is only divisible by 1 and 17 → so it’s prime.

✔️ Correct!

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🔹 Problem 3: Add adjacent numbers together. Write their sums in the blocks above them.

We have a pyramid of numbers:

```
[ ]
[1,921] [1,087]
[1,523] [398] [689]
[1,146] [377] [21] [668]
```

We need to add adjacent pairs and write the sum above.

Let’s work from the bottom up:

#### Step 1: Add adjacent pairs in the bottom row:
- 1,146 + 377 = 1,523
- 377 + 21 = 398
- 21 + 668 = 689

These match the row above — good.

#### Step 2: Add next level:
- 1,921 + 1,087 = 3,008

So the top block should be 3,008, which matches the given answer.

✔ The pyramid is correct as shown.

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🔹 Problem 4: What number is 9 times as many as 5?

Answer: 45

✔ Explanation:
9 × 5 = 45

✔️ Correct!

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🔹 Problem 5: What number is 7 times as many as 8?

Answer: 56

✔ Explanation:
7 × 8 = 56

✔️ Correct!

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🔹 Problem 6: Solve the flowchart-style multiplication/division problem

The diagram shows:

```
240 ÷ 60 = 4
↓
3 × 60 = 180
↓
3 × 34 = 102
↓
17 × 6 = 102
↓
81 × 6 = 486
```

This appears to be a series of related equations, possibly showing factoring or decomposition.

Let’s check each one:

1. 240 ÷ 60 = 4 → ✔ True
2. 3 × 60 = 180 → ✔ True
3. 3 × 34 = 102 → ✔ 3 × 34 = 102
4. 17 × 6 = 102 → ✔ True (since 17×6=102)
5. 81 × 6 = 486 → ✔ True (80×6=480, 1×6=6 → 486)

All calculations are correct.

Note: This may be illustrating how numbers can be broken down into factors or used in repeated multiplication.

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✔ Summary of Solutions:

| Problem | Solution | Explanation |
|--------|---------|-----------|
| Round 384,229 | 400,000 | Round up because 8 ≥ 5 |
| Is 17 prime? | Prime | Only divisible by 1 and 17 |
| Pyramid sum | 3,008 | Add adjacent numbers upward |
| 9 × 5 | 45 | Multiplication |
| 7 × 8 | 56 | Multiplication |
| All equations | Correct | All arithmetic checks out |

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📌 Final Note:

This image is likely a sample page from a 4th-grade math workbook designed for weekly practice. It covers key skills such as:
- Rounding
- Prime vs. composite numbers
- Addition and multiplication
- Understanding number relationships

These types of exercises help reinforce foundational math concepts aligned with state standards.

Let me know if you'd like a printable version of these problems or more practice!