Printable primary math worksheet for math grades 1 to 6 based on ... - Free Printable

Let's solve the worksheet step by step.

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Part 1: Write these numbers in expanded and standard form

We need to write each number in expanded form (breaking it down by place value) and then confirm the standard form (the original number).

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#### 1. 987,221
- Expanded form:
$ 900,000 + 80,000 + 7,000 + 200 + 20 + 1 $
- Standard form: 987,221

✔ Answer:
900,000 + 80,000 + 7,000 + 200 + 20 + 1

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#### 2. 175,208
- Expanded form:
$ 100,000 + 70,000 + 5,000 + 200 + 0 + 8 $
- Standard form: 175,208

✔ Answer:
100,000 + 70,000 + 5,000 + 200 + 8

(Note: We can omit the zero tens, but it’s okay to include.)

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#### 3. 24,908
- Expanded form:
$ 20,000 + 4,000 + 900 + 0 + 8 $
- Standard form: 24,908

✔ Answer:
20,000 + 4,000 + 900 + 8

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#### 4. 2,987
- Expanded form:
$ 2,000 + 900 + 80 + 7 $
- Standard form: 2,987

✔ Answer:
2,000 + 900 + 80 + 7

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#### 5. 255,123
- Expanded form:
$ 200,000 + 50,000 + 5,000 + 100 + 20 + 3 $
- Standard form: 255,123

✔ Answer:
200,000 + 50,000 + 5,000 + 100 + 20 + 3

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#### 6. 132,227
- Expanded form:
$ 100,000 + 30,000 + 2,000 + 200 + 20 + 7 $
- Standard form: 132,227

✔ Answer:
100,000 + 30,000 + 2,000 + 200 + 20 + 7

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#### 7. 56,009
- Expanded form:
$ 50,000 + 6,000 + 0 + 0 + 9 $
- Standard form: 56,009

✔ Answer:
50,000 + 6,000 + 9

(We skip zeros in expanded form unless specified.)

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#### 8. 408,025
- Expanded form:
$ 400,000 + 0 + 8,000 + 0 + 20 + 5 $
- Standard form: 408,025

✔ Answer:
400,000 + 8,000 + 20 + 5

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Part 2: Write the sum in standard form

Now we add up the expanded forms and write the standard form.

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#### 1. $ 100,000 + 30,000 + 2,000 + 400 + 90 + 4 $
Add:
- 100,000 + 30,000 = 130,000
- 130,000 + 2,000 = 132,000
- 132,000 + 400 = 132,400
- 132,400 + 90 = 132,490
- 132,490 + 4 = 132,494

✔ Answer: 132,494

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#### 2. $ 100,000 + 2,000 + 400 + 60 + 2 $
Add:
- 100,000 + 2,000 = 102,000
- 102,000 + 400 = 102,400
- 102,400 + 60 = 102,460
- 102,460 + 2 = 102,462

✔ Answer: 102,462

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#### 3. $ 20,000 + 900 + 50 + 1 $
Add:
- 20,000 + 900 = 20,900
- 20,900 + 50 = 20,950
- 20,950 + 1 = 20,951

✔ Answer: 20,951

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#### 4. $ 300,000 + 30 + 3 $
Add:
- 300,000 + 30 = 300,030
- 300,030 + 3 = 300,033

✔ Answer: 300,033

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#### 5. $ 100,000 + 80,000 + 2 $
Add:
- 100,000 + 80,000 = 180,000
- 180,000 + 2 = 180,002

✔ Answer: 180,002

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#### 6. $ 800,000 + 90,000 + 2,000 + 90 + 4 $
Add:
- 800,000 + 90,000 = 890,000
- 890,000 + 2,000 = 892,000
- 892,000 + 90 = 892,090
- 892,090 + 4 = 892,094

✔ Answer: 892,094

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✔ Final Answers:

#### Part 1: Expanded Form
1. 987,221 → 900,000 + 80,000 + 7,000 + 200 + 20 + 1
2. 175,208 → 100,000 + 70,000 + 5,000 + 200 + 8
3. 24,908 → 20,000 + 4,000 + 900 + 8
4. 2,987 → 2,000 + 900 + 80 + 7
5. 255,123 → 200,000 + 50,000 + 5,000 + 100 + 20 + 3
6. 132,227 → 100,000 + 30,000 + 2,000 + 200 + 20 + 7
7. 56,009 → 50,000 + 6,000 + 9
8. 408,025 → 400,000 + 8,000 + 20 + 5

#### Part 2: Standard Form
1. 100,000 + 30,000 + 2,000 + 400 + 90 + 4 → 132,494
2. 100,000 + 2,000 + 400 + 60 + 2 → 102,462
3. 20,000 + 900 + 50 + 1 → 20,951
4. 300,000 + 30 + 3 → 300,033
5. 100,000 + 80,000 + 2 → 180,002
6. 800,000 + 90,000 + 2,000 + 90 + 4 → 892,094

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