Virginia SOL 4.NS.1.a
The Standard
Read nine-digit whole numbers, presented in standard form, and represent the same number in written form.
Virginia Standards of Learning for Mathematics · The student will use place value understanding to read, write, and identify the place and value of each digit in a nine-digit whole number.
Teacher's field guide
What This Standard Means
What Students Need to Do
- Students group digits into periods and read whole numbers through hundred millions. They write each number in words and skip places held by zeros.
What Mastery Looks Like
- A student accurately reads 305,040,018 as three hundred five million, forty thousand, eighteen. They write the same words in order without naming empty periods or changing digit values.
Common Misconceptions
- Students may read each digit separately or lose track at commas. Zeros often cause errors, such as reading 305,040,018 as three hundred five million, four hundred thousand, eighteen. Some add “and” or confuse fourteen with forty.
How to Assess It
- Display 406,072,019. Have each student read it to a partner, then write its name on an exit slip.
Lesson moves
Ways to Teach It
Give pairs digit cards and a three-period place value mat; build 508,026,104, then read and write its name.
Students explain how the commas help them read 701,005,090, then compare their explanation with a partner.
Play Number Name Match with cards showing standard forms and word forms; students race to pair each number with its name.
Post four city population figures under 1,000,000,000; students read each aloud and create a written-form label for a class display.
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Printable 4.NS.1.a Worksheet
A ready-to-print activity worksheet aligned to 4.NS.1.a, with an answer key for the teacher on its own page. No account needed.
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Related Standards
- 4.NS.1.b
Write nine-digit whole numbers in standard form when the numbers are presented orally or in written form.
- 3.NS.1.a
Read and write six-digit whole numbers in standard form, expanded form, and word form.
- 4.NS.1
The student will use place value understanding to read, write, and identify the place and value of each digit in a nine-digit whole number.
- 2.NS.2.b
Read, write, and represent three-digit numbers in standard form, expanded form, and word form, using concrete or pictorial representations.
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