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Common Core Standard 3.OA.B.6 Questions

Understand division as an unknown-factor problem. For example, find 32 ÷ 8 by finding the number that makes 32 when multiplied by 8.

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Grade 3 Division CCSS: 3.OA.B.6
Denny used the array below to model the multiplication equation 4 x 8 = 32.

CarrotCarrotCarrotCarrotCarrotCarrotCarrotCarrot
CarrotCarrotCarrotCarrotCarrotCarrotCarrotCarrot
CarrotCarrotCarrotCarrotCarrotCarrotCarrotCarrot
CarrotCarrotCarrotCarrotCarrotCarrotCarrotCarrot

Which division equation is modeled by the same figure?
  1. [math]8 -: 2 = 4[/math]
  2. [math]12 -: 4 = 3[/math]
  3. [math]24 -: 8 = 3[/math]
  4. [math]32 -: 4 = 8[/math]
Grade 3 Division CCSS: 3.OA.B.6
Ally solved the math problem shown.

[math]72 -: 8 = ?[/math]

Which equation can Ally use to check her answer?
  1. [math]8 + ? = 72[/math]
  2. [math]8 + 72 = ?[/math]
  3. [math]8 xx 72 = ?[/math]
  4. [math]8 xx? = 72[/math]
Grade 3 Multiplication CCSS: 3.OA.B.6
David solved the math problem shown.

[math]9 xx 7 = ?[/math]

Which equation can David use to check his answer?
  1. [math]? + 7 = 9[/math]
  2. [math]9 + ? = 7[/math]
  3. [math]7 -:?=9[/math]
  4. [math]?-:9=7[/math]
Grade 3 Division CCSS: 3.OA.B.6
Given the equation shown below:
[math]6 xx[/math]Spring - Tree - Small[math]= 48[/math]
Which other equation is true?
  1. [math]6 -:[/math]Spring - Tree - Small[math]=48[/math]
  2. [math]48 -:[/math]Spring - Tree - Small[math]=6[/math]
Grade 3 Division CCSS: 3.OA.B.6
Grade 3 Division CCSS: 3.OA.B.6, MP3, MP6

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