Free Printable WorksheetMathGrade 5Math Curriculum5.15

5.15 Write Whole Numbers and Decimals in Word Form Worksheet

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Worksheet Overview & Skills Covered

Core academic competencies and curriculum alignment

This Grade 5 Math worksheet provides structured practice on 5.15 Write Whole Numbers and Decimals in Word Form. Students are guided through targeted exercises that build foundational understanding, computational accuracy, and critical thinking skills.

Skill description: Select the correct word form for a number or the correct number for a given word form, including decimals. Choose the statement that best justifies the answer using place-value language and an estimation check. Corresponding standards: CCSS 5.NBT.A.3.

Whether you are an educator preparing classroom handouts, a tutor reinforcing weekly topics, or a parent supporting homeschool learning, this printable resource gives students the deliberate practice required to achieve subject fluency and master state standards.

Grade

Grade 5

Subject

Math

Domain

Math Curriculum

Formats

PDF & DOCX

Sample Practice Problems

Preview the types of problems and questions covered in this worksheet

Below are sample questions representative of the exercises included on this worksheet and related 5.15 Write Whole Numbers and Decimals in Word Form skill assessments:

Problem 1Difficulty: Mastery

In a zoo record, the battery charge is written as "six hundred ninety-two million four hundred fifty-four thousand three hundred ten and nine hundred twelve thousandths". Which option shows the correct standard form and justifies it using place value and an estimation check?

A692,454,310.219. PV: Reversing the decimal digits changes the value. Est: 692,454,310.219 ≈ 692,454,310.

B692,454,310.912. PV: Misreading 'thousandths' as a different place shifts the decimal. Est: 692,454,310.912 ≈ 692,454,311.

C692,455,310.912. PV: Changing the whole-number part changes the thousands groups. Est: 692,455,310.912 ≈ 692,455,311.

D692,454,310.912. PV: 'thousandths' means 3 digits after the decimal; 912 thousandths = 0.912. Est: 692,454,310.912 ≈ 692,454,000.

Solution & Explanation:The word "thousandths" means 3 digits after the decimal point. nine hundred twelve thousandths is 0.912, so the number is 692,454,310.912. Estimation check: 692,454,310.912 rounds to about 692,454,311, matching the size of the whole-number part.

Problem 2Difficulty: Mastery

In a geology field trip, the flour in a mix is 84,041,730.518 liters. Which choice shows the correct word form and a correct justification using place-value language and rounding?

Aeighty-four million forty-one thousand seven hundred three and five hundred eighteen thousandths. PV: The whole-number part is eighty-four million forty-one thousand seven hundred three. Est: 84,041,730.518 ≈ 84,041,700.

Beighty-four million forty-one thousand seven hundred thirty and five hundred eighty-one thousandths. PV: Reading the digits as 581 thousandths. Est: 84,041,730.518 ≈ 84,041,700.

Ceighty-four million forty-one thousand seven hundred thirty and five hundred eighteen thousandths. PV: 518 = 518 thousandths. Est: 84,041,730.518 ≈ 84,041,700.

Deighty-four million forty-one thousand seven hundred thirty and fifty-one hundredths. PV: Using only the first two digits gives 51 hundredths. Est: 84,041,730.518 ≈ 84,041,731.

Solution & Explanation:Split 84,041,730.518 into 84,041,730 and 0.518. The digits 518 are 518 thousandths, so write "eighty-four million forty-one thousand seven hundred thirty and five hundred eighteen thousandths". Estimation check: 84,041,730.518 rounds to about 84,041,731, so it should be just over 84,041,731.

Problem 3Difficulty: Mastery

In a shipping warehouse, the paint needed is written as "six hundred seventeen million six hundred sixty-five thousand four hundred forty-eight and eight hundred one thousandths". Select the statement with the correct number in standard form and a correct place-value and estimate check.

A617,665,448.801. PV: Misreading 'thousandths' as a different place shifts the decimal. Est: 617,665,448.801 ≈ 617,665,449.

B617,665,448.801. PV: 'thousandths' means 3 digits after the decimal; 801 thousandths = 0.801. Est: 617,665,448.801 ≈ 617,665,448.80.

C617,666,448.801. PV: Changing the whole-number part changes the thousands groups. Est: 617,666,448.801 ≈ 617,666,449.

D617,665,448.108. PV: Reversing the decimal digits changes the value. Est: 617,665,448.108 ≈ 617,665,448.

Solution & Explanation:The word "thousandths" means 3 digits after the decimal point. eight hundred one thousandths is 0.801, so the number is 617,665,448.801. Estimation check: 617,665,448.801 rounds to about 617,665,449, matching the size of the whole-number part.

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QWhat grade level and standards does this worksheet align with?

This worksheet is designed specifically for Grade 5 Math students. It aligns with educational standard 5.15 (Write Whole Numbers and Decimals in Word Form).