Educational math worksheet teaching students to write numbers in standard, expanded, and word forms using charts and examples.

Let's solve each part of the worksheet step by step.

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A. Write the numbers in STANDARD FORM

#### i. $ 90,000 + 1,000 + 600 + 10 + 6 $

We add all the values together:

- $ 90,000 $
- $ + 1,000 = 91,000 $
- $ + 600 = 91,600 $
- $ + 10 = 91,610 $
- $ + 6 = 91,616 $

✔ Answer: 91,616

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#### ii. *three hundred twenty-one million eight hundred sixty thousand four hundred fifteen*

Break it down:

- "three hundred twenty-one million" → 321,000,000
- "eight hundred sixty thousand" → 860,000
- "four hundred fifteen" → 415

Now add them:

- $ 321,000,000 + 860,000 = 321,860,000 $
- $ + 415 = 321,860,415 $

✔ Answer: 321,860,415

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#### iii. $ 6,000,000 + 50,000 + 7,000 + 300 + 90 + 5 $

Add step by step:

- $ 6,000,000 $
- $ + 50,000 = 6,050,000 $
- $ + 7,000 = 6,057,000 $
- $ + 300 = 6,057,300 $
- $ + 90 = 6,057,390 $
- $ + 5 = 6,057,395 $

✔ Answer: 6,057,395

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B. Write the numbers in EXPANDED FORM

#### i. $ 418,952,302 $

Break this number into its place values:

- Hundreds Millions: 400,000,000
- Ten Millions: 10,000,000
- Millions: 8,000,000
- Hundred Thousands: 900,000
- Ten Thousands: 50,000
- Thousands: 2,000
- Hundreds: 300
- Tens: 0
- Ones: 2

So expanded form:

$$
400,000,000 + 10,000,000 + 8,000,000 + 900,000 + 50,000 + 2,000 + 300 + 0 + 2
$$

But we can simplify and omit zero:

✔ Answer:
$ 400,000,000 + 10,000,000 + 8,000,000 + 900,000 + 50,000 + 2,000 + 300 + 2 $

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#### ii. *eight hundred thirty-nine thousand two hundred sixty-seven*

First, write in standard form:
839,267

Now break into place values:

- Hundreds Thousands: 800,000
- Ten Thousands: 30,000
- Thousands: 9,000
- Hundreds: 200
- Tens: 60
- Ones: 7

So expanded form:

$$
800,000 + 30,000 + 9,000 + 200 + 60 + 7
$$

✔ Answer:
$ 800,000 + 30,000 + 9,000 + 200 + 60 + 7 $

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C. Write the numbers in WORD FORM

#### i. $ 910,843,075 $

Break it down by periods:

- Billions: none (so skip)
- Millions: 910 million
- Thousands: 843 thousand
- Ones: 075 → seventy-five

So:
- 910 million = nine hundred ten million
- 843 thousand = eight hundred forty-three thousand
- 075 = seventy-five

Combine:

Nine hundred ten million eight hundred forty-three thousand seventy-five

✔ Answer:
*Nine hundred ten million eight hundred forty-three thousand seventy-five*

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#### ii. $ 80,000,000 + 1,000,000 + 300,000 + 50,000 + 8,000 + 200 + 10 $

First, add to get standard form:

- $ 80,000,000 $
- $ + 1,000,000 = 81,000,000 $
- $ + 300,000 = 81,300,000 $
- $ + 50,000 = 81,350,000 $
- $ + 8,000 = 81,358,000 $
- $ + 200 = 81,358,200 $
- $ + 10 = 81,358,210 $

Now write in word form:

Break into:
- Millions: 81 million
- Thousands: 358 thousand
- Ones: 210

So:
- 81 million = eighty-one million
- 358 thousand = three hundred fifty-eight thousand
- 210 = two hundred ten

Combine:

Eighty-one million three hundred fifty-eight thousand two hundred ten

✔ Answer:
*Eighty-one million three hundred fifty-eight thousand two hundred ten*

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✔ Final Answers:

#### A. Standard Form
i. 91,616
ii. 321,860,415
iii. 6,057,395

#### B. Expanded Form
i. 400,000,000 + 10,000,000 + 8,000,000 + 900,000 + 50,000 + 2,000 + 300 + 2
ii. 800,000 + 30,000 + 9,000 + 200 + 60 + 7

#### C. Word Form
i. Nine hundred ten million eight hundred forty-three thousand seventy-five
ii. Eighty-one million three hundred fifty-eight thousand two hundred ten

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