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Fun House Mirror Math at the Fair worksheet preview

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Fun House Mirror Math at the Fair

Grade 5 scaling practice: predict if a fun house mirror makes a reflection taller or shorter by comparing its fraction factor to 1.

Grade 5MathInteractive · Printable

Aligned to5.NF.B.5.b

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What’s included

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

Details

Format
Interactive · Printable
Grade
Grade 5
Subject
Math
Question types
Fill in the blank, Multiple choice, Matching, Circle the answer, Short answer

About this worksheet

What students practice

  • Students predict if a product is greater or less than a given number by comparing the fraction factor to 1.
  • Students use the size of a product to reason about the fraction factor that made it.
  • Students explain why multiplying a fraction by n/n gives an equivalent fraction.

How to use

Use after students multiply whole numbers by fractions. Have them predict taller or shorter before multiplying, then check a few predictions with multiplication.

Curriculum

Common Core standard covered

5.NF.B.5.b

Explain why multiplying by a fraction greater than 1 makes a larger product and less than 1 a smaller one.

Preview

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Name Date

Fun House Mirror Math at the Fair

Compare each mirror number to 1 to tell if a reflection looks taller or shorter.

Compare the mirror number to 1

Every mirror at the fair multiplies a person's height by its mirror number. Do not multiply yet. Compare each mirror number to 1.

1.
The shaded part of the bar shows Mirror A's number. The whole bar stands for 1.
What is true about Mirror A?
  • A. Its number is greater than 1, so a reflection looks taller.
  • B. Its number is equal to 1, so a reflection looks the same height.
  • C. Its number is less than 1, so a reflection looks shorter.
  • D. Its number is less than 1, so a reflection looks taller.
2.
Rosa is 54 inches tall. Use the word bank to finish each sentence.
Word bank: greater · less · taller · shorter

Mirror B has the number 4/3. 4/3 is   than 1, so Rosa looks   than 54 inches.
Mirror C has the number 7/9. 7/9 is   than 1, so Rosa looks   than 54 inches.

3.
The five dots on the number line show the numbers of five different mirrors.012

  of the mirrors make a reflection look taller.
  of the mirrors make a reflection look shorter.

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