Worksheet for practicing writing and reading numbers up to 9,999 in word and standard form.

Let's solve the worksheet step by step.

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Part 1: Write the word name for each number below.

We need to write the number in words (e.g., "two thousand, five hundred seventy-eight").

#### a. 4,115
Answer: Four thousand, one hundred fifteen

#### b. 9,634
Answer: Nine thousand, six hundred thirty-four

#### c. 5,672
Answer: Five thousand, six hundred seventy-two

#### d. 8,032
Answer: Eight thousand, thirty-two

#### e. 4,400
Answer: Four thousand, four hundred

#### f. 6,909
Answer: Six thousand, nine hundred nine

#### g. 9,520
Answer: Nine thousand, five hundred twenty

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Part 2: Now write each word name in standard form.

We convert the word form into numbers.

#### h. three thousand, one hundred eleven
Answer: 3,111

#### i. one thousand, four hundred five
Answer: 1,405

#### j. seven thousand, ninety-one
Answer: 7,091

#### k. eight thousand, ninety-two
Answer: 8,092

#### l. five thousand, six hundred, eighty-six
Answer: 5,686

#### m. two thousand, eighty
Answer: 2,080

#### n. nine thousand, ninety-nine
Answer: 9,099

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✔ Final Answers:

#### Part 1:
a. Four thousand, one hundred fifteen
b. Nine thousand, six hundred thirty-four
c. Five thousand, six hundred seventy-two
d. Eight thousand, thirty-two
e. Four thousand, four hundred
f. Six thousand, nine hundred nine
g. Nine thousand, five hundred twenty

#### Part 2:
h. 3,111
i. 1,405
j. 7,091
k. 8,092
l. 5,686
m. 2,080
n. 9,099

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✔ Explanation:
- When writing numbers in word form, we break them down by place value: thousands, hundreds, tens, and ones.
- For example, 4,115 = 4 thousands + 1 hundred + 1 ten + 5 ones → "Four thousand, one hundred fifteen".
- When converting from word form to standard form, we reverse the process: identify the digits based on their place values and write the number accordingly.

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