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Lesson Plan

Illustrative Mathematics: Multiplying Decimals by 10

Curated by ACT

The purpose of this task is to help students understand and explain why multiplying a decimal number by 10 shifts all the digits one place to the left. This understanding builds on work around place-value that students have done with whole numbers in 3rd and 4th grade (see especially 3.NBT.3 and 4.NBT.1). This is an instructional task that the teacher can give students before discussing this "digit shifting" principle for multiplying decimal numbers by 10. Aligns with 5.NBT.A.2.

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CCSS: Adaptable
Concepts
decimals, place value, powers of 10
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Additional Tags
decimal multiplication, decimal operations, multiply decimals, multiply multi-digit decimals, 5.nbt.a.2, cc by-nc-sa 4.0, creative commons attribution-noncommercial-sharealike 4.0, creative commons, illustrative mathematics, illustrative mathematics: multiplying decimals by 10
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Classroom Considerations
  • Knovation Readability Score: 5 (1 low difficulty, 5 high difficulty)
  • The intended use for this resource is Instructional|practice