Reading and Writing decimals interactive worksheet - Free Printable

Explanation:
We are given a table with two columns:
- Standard form (digits) — numbers written with digits (e.g., 12.98)
- Word form — numbers written out in words (e.g., “Twelve and ninety-eight hundredths”)

Some rows have the standard form filled in, and we need to write the word form.
Other rows have the word form, and we need to write the standard form (digits).

Let’s go row by row and fill in the blanks.

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Row 1:
Standard: 123.456
Word: *One hundred and twenty-three units, and four hundred and fifty-six thousandths.*
✔ Already filled — correct.

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Row 2:
Standard: 12.98
Break it down:
- Whole number part: 12 → “twelve”
- Decimal part: .98 → 98 hundredths → “ninety-eight hundredths”
So full word form: Twelve and ninety-eight hundredths

Note: In formal math writing, we often say “and” only for the decimal point. So “Twelve and ninety-eight hundredths” is correct.

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Row 3:
Word: *Two hundred and two units, and two tenths*
→ Whole number: 202
→ Decimal: two tenths = 0.2
So standard form: 202.2

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Row 4:
Standard: 0.98
→ 0 whole units
→ 98 hundredths
So word form: Ninety-eight hundredths

(We don’t say “zero and…” unless required — usually just “ninety-eight hundredths”.)

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Row 5:
Word: *Three tenths*
→ 3/10 = 0.3
Standard form: 0.3

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Row 6:
Standard: 0.67
→ 67 hundredths
Word form: Sixty-seven hundredths

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Row 7:
Word: *One thousand units and one thousandth*
→ 1000 + 0.001 = 1000.001

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Row 8:
Standard: 102.908
Break it down:
- Whole: 102 → “one hundred two”
- Decimal: .908 → 908 thousandths → “nine hundred eight thousandths”
So word form: One hundred two and nine hundred eight thousandths

(“Units” is sometimes used, but in standard word form, we just say the whole number, then “and”, then the decimal part as a fraction.)

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Row 9:
Word: *Seventy-eight units and nine tenths*
→ 78 + 0.9 = 78.9

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Row 10:
Standard: 99.09
→ Whole: 99 → “ninety-nine”
→ Decimal: .09 = 9 hundredths
Word form: Ninety-nine and nine hundredths

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Row 11:
Word: *Forty-six units and three thousandths*
→ 46 + 0.003 = 46.003

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Row 12:
Standard: 0.987
→ 987 thousandths
Word form: Nine hundred eighty-seven thousandths

(No whole number part, so no “and”.)

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Row 13:
Word: *One hundred and two units and twelve thousandths*
→ 102 + 0.012 = 102.012

Now let’s list all missing entries clearly:

| Standard form | Word form |
|---------------|-----------|
| 12.98 | Twelve and ninety-eight hundredths |
| 202.2 | Two hundred and two units, and two tenths |
| 0.98 | Ninety-eight hundredths |
| 0.3 | Three tenths |
| 0.67 | Sixty-seven hundredths |
| 1000.001 | One thousand units and one thousandth |
| 102.908 | One hundred two and nine hundred eight thousandths |
| 78.9 | Seventy-eight units and nine tenths |
| 99.09 | Ninety-nine and nine hundredths |
| 46.003 | Forty-six units and three thousandths |
| 0.987 | Nine hundred eighty-seven thousandths |
| 102.012 | One hundred and two units and twelve thousandths |

All blanks are now filled.

Final Answer:
12.98 → Twelve and ninety-eight hundredths
202.2 → Two hundred and two units, and two tenths
0.98 → Ninety-eight hundredths
0.3 → Three tenths
0.67 → Sixty-seven hundredths
1000.001 → One thousand units and one thousandth
102.908 → One hundred two and nine hundred eight thousandths
78.9 → Seventy-eight units and nine tenths
99.09 → Ninety-nine and nine hundredths
46.003 → Forty-six units and three thousandths
0.987 → Nine hundred eighty-seven thousandths
102.012 → One hundred and two units and twelve thousandths