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Skate and Climb: Scale Decisions worksheet preview

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Skate and Climb: Scale Decisions

Estimate large gym membership records and tiny route measurements using powers of 10, then compare quantities with multiplicative factors.

Grade 8MathInteractive · Printable

Aligned to8.EE.A.3

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What’s included

  • Single worksheet
  • Auto-graded online
  • 1 Common Core standard
  • Printable answer key
  • 14 questions
  • Classroom-ready

Details

Format
Interactive · Printable
Grade
Grade 8
Subject
Math
Question types
Fill in the blank, Multiple choice, Circle the answer, Short answer

About this worksheet

What students practice

  • Students estimate large and small quantities as a single digit times a power of 10.
  • Students use estimates to determine how many times as large one quantity is as another.
  • Students explain what information is lost when quantities are rounded to one significant digit.

How to use

Use after introducing powers of 10. Have students record their rounded estimates before comparing quantities, then discuss the limits of those estimates.

Curriculum

Common Core standard covered

8.EE.A.3

Estimate very large or very small quantities as a single digit times a power of 10, and tell how many times bigger one is.

Preview

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Skate and Climb: Scale Decisions

Estimate membership records and route measurements, then compare their sizes.

Estimate the Records

A network of skate and climbing gyms tracks memberships, online activity, and route equipment. Round to one significant digit: write each estimate as d × 10ⁿ, where d is a whole number from 1 to 9. Use these rounded estimates for comparisons.

1.
Select every record paired with its correct one-significant-digit estimate.

Membership-page views: 72,600,000 ≈ 7 × 10⁷Route-guide downloads: 4,180,000 ≈ 4 × 10⁵Recorded skate runs: 863,000 ≈ 9 × 10⁵Membership renewals: 236,000 ≈ 2 × 10⁶

2.
A ridge on a climbing hold is 0.0000264 meter high. Complete its one-significant-digit estimate.

Estimated height =   × 10ⁿ meters, where n =  

3.
Across the gym network, 138,000 people have climbing memberships. Which is the required one-significant-digit estimate?
  • A. 2 × 10⁵ memberships
  • B. 1 × 10⁵ memberships
  • C. 1 × 10⁶ memberships
  • D. 1 × 10⁴ memberships

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