Math Buzz worksheet for elementary students, including time, addition, number comparison, measurement, place value, and expanded form problems.

Let's solve each part of the Math Buzz worksheet step by step and explain the solutions.

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1. Time Problem:

> Roman ended soccer practice at 4:45 P.M. He was there for 1 hour and 30 minutes. Use the number line to find what time Roman’s soccer practice started.

We are told:
- End time: 4:45 P.M.
- Duration: 1 hour and 30 minutes

To find the start time, subtract 1 hour 30 minutes from 4:45 P.M.

#### Step-by-step subtraction:
- Subtract 1 hour from 4:45 → 3:45 P.M.
- Subtract 30 minutes from 3:45 → 3:15 P.M.

✔ Answer: Start time = 3:15 P.M.

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2. Addition Problem:

> Find the sum of 64,092 and 31,768.

Let’s add:

```
64,092
+ 31,768
--------
95,860
```

✔ Answer: 95,860

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3. Compare Numbers:

Compare each set using "is greater than", "is less than", or "is equal to".

#### a) 6,298 ___ 6,802
- 6,298 < 6,802
✔ Answer: is less than

#### b) 15,153 ___ 12,365
- 15,153 > 12,365
✔ Answer: is greater than

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4. Best Unit to Measure Mass of a Pencil:

Choose between grams or kilograms.

- A pencil is light — about 5–10 grams.
- Kilograms are used for heavier objects (like a book or a person).

✔ Answer: grams

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5. Place Value Chart:

> Represent the number 75,329 on the place value chart.

Break it down:

| M | H Th | T Th | H | T | O |
|---|------|------|---|---|---|
| | 7 | 5 | 3 | 2 | 9 |

So:
- M (Millions): blank
- H Th (Hundred Thousands): 7
- T Th (Ten Thousands): 5
- H (Hundreds): 3
- T (Tens): 2
- O (Ones): 9

✔ Place Value Chart:
```
, 7 5 3 2 9
```

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6. Expanded Form:

Write 75,329 in expanded form.

Break it into place values:

- 70,000 (7 × 10,000)
- 5,000 (5 × 1,000)
- 300 (3 × 100)
- 20 (2 × 10)
- 9 (9 × 1)

✔ Expanded Form:
70,000 + 5,000 + 300 + 20 + 9

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✔ Final Answers Summary:

1. Start time: 3:15 P.M.
2. Sum: 95,860
3. Comparisons:
- 6,298 is less than 6,802
- 15,153 is greater than 12,365
4. Best unit: grams
5. Place value chart:
```
, 7 5 3 2 9
```
6. Expanded form: 70,000 + 5,000 + 300 + 20 + 9

Let me know if you'd like this formatted as a printable answer sheet!