Common Core: 3rd Grade Math : Understand Division as an Unknown-Factor Problem: CCSS.Math.Content.3.OA.B.6

Study concepts, example questions & explanations for Common Core: 3rd Grade Math

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Example Questions

Example Question #1 : Understand Division As An Unknown Factor Problem: Ccss.Math.Content.3.Oa.B.6

Solve \(\displaystyle 22\div2\) by finding the unknown factor. 

Possible Answers:

\(\displaystyle 13\)

\(\displaystyle 10\)

\(\displaystyle 11\)

\(\displaystyle 14\)

\(\displaystyle 12\)

Correct answer:

\(\displaystyle 11\)

Explanation:

A factor is a number that is multiplied by another number to produce a given number. 

In this case, the unknown factor is the number multiplied by \(\displaystyle 2\) to get \(\displaystyle 22\)

\(\displaystyle 2\times11=22\)

Example Question #362 : How To Divide

Solve \(\displaystyle 60\div3\) by finding the unknown factor. 

Possible Answers:

\(\displaystyle 20\)

\(\displaystyle 15\)

\(\displaystyle 30\)

\(\displaystyle 18\)

\(\displaystyle 22\)

Correct answer:

\(\displaystyle 20\)

Explanation:

A factor is a number that is multiplied by another number to produce a given number. 

In this case, the unknown factor is the number multiplied by \(\displaystyle 3\) to get \(\displaystyle 60\)

\(\displaystyle 3\times20=60\)

Example Question #363 : How To Divide

Solve \(\displaystyle 24\div4\) by finding the unknown factor. 

Possible Answers:

\(\displaystyle 6\)

\(\displaystyle 3\)

\(\displaystyle 7\)

\(\displaystyle 5\)

\(\displaystyle 4\)

Correct answer:

\(\displaystyle 6\)

Explanation:

A factor is a number that is multiplied by another number to produce a given number. 

In this case, the unknown factor is the number multiplied by \(\displaystyle 4\) to get \(\displaystyle 24\)

\(\displaystyle 4\times6=24\)

Example Question #364 : How To Divide

Solve \(\displaystyle 25\div5\) by finding the unknown factor. 

 

Possible Answers:

\(\displaystyle 1\)

\(\displaystyle 3\)

\(\displaystyle 5\)

\(\displaystyle 4\)

\(\displaystyle 2\)

Correct answer:

\(\displaystyle 5\)

Explanation:

A factor is a number that is multiplied by another number to produce a given number. 

In this case, the unknown factor is the number multiplied by \(\displaystyle 5\) to get \(\displaystyle 25\)

\(\displaystyle 5\times5=25\)

Example Question #371 : How To Divide

Solve \(\displaystyle 42\div6\) by finding the unknown factor. 

Possible Answers:

\(\displaystyle 9\)

\(\displaystyle 7\)

\(\displaystyle 6\)

\(\displaystyle 5\)

\(\displaystyle 8\)

Correct answer:

\(\displaystyle 7\)

Explanation:

A factor is a number that is multiplied by another number to produce a given number. 

In this case, the unknown factor is the number multiplied by \(\displaystyle 6\) to get \(\displaystyle 42\)

\(\displaystyle 6\times7=42\)

Example Question #2 : Understand Division As An Unknown Factor Problem: Ccss.Math.Content.3.Oa.B.6

Solve \(\displaystyle 24\div8\) by finding the unknown factor. 

Possible Answers:

\(\displaystyle 7\)

\(\displaystyle 3\)

\(\displaystyle 4\)

\(\displaystyle 5\)

\(\displaystyle 6\)

Correct answer:

\(\displaystyle 3\)

Explanation:

A factor is a number that is multiplied by another number to produce a given number. 

In this case, the unknown factor is the number multiplied by \(\displaystyle 8\) to get \(\displaystyle 24\)

\(\displaystyle 8\times3=24\)

Example Question #7 : Understand Division As An Unknown Factor Problem: Ccss.Math.Content.3.Oa.B.6

Solve \(\displaystyle 108\div9\) by finding the unknown factor. 

Possible Answers:

\(\displaystyle 10\)

\(\displaystyle 11\)

\(\displaystyle 13\)

\(\displaystyle 14\)

\(\displaystyle 12\)

Correct answer:

\(\displaystyle 12\)

Explanation:

A factor is a number that is multiplied by another number to produce a given number. 

In this case, the unknown factor is the number multiplied by \(\displaystyle 9\) to get \(\displaystyle 108\)

\(\displaystyle 9\times12=108\)

Example Question #8 : Understand Division As An Unknown Factor Problem: Ccss.Math.Content.3.Oa.B.6

Solve \(\displaystyle 80\div10\) by finding the unknown factor. 

Possible Answers:

\(\displaystyle 9\)

\(\displaystyle 8\)

\(\displaystyle 7\)

\(\displaystyle 5\)

\(\displaystyle 6\)

Correct answer:

\(\displaystyle 8\)

Explanation:

A factor is a number that is multiplied by another number to produce a given number. 

In this case, the unknown factor is the number multiplied by \(\displaystyle 10\) to get \(\displaystyle 80\)

\(\displaystyle 10\times8=80\)

Example Question #9 : Understand Division As An Unknown Factor Problem: Ccss.Math.Content.3.Oa.B.6

Solve \(\displaystyle 33\div11\) by finding the unknown factor. 

Possible Answers:

\(\displaystyle 2\)

\(\displaystyle 6\)

\(\displaystyle 5\)

\(\displaystyle 3\)

\(\displaystyle 4\)

Correct answer:

\(\displaystyle 3\)

Explanation:

A factor is a number that is multiplied by another number to produce a given number. 

In this case, the unknown factor is the number multiplied by \(\displaystyle 11\) to get \(\displaystyle 33\)

\(\displaystyle 11\times3=33\)

Example Question #10 : Understand Division As An Unknown Factor Problem: Ccss.Math.Content.3.Oa.B.6

Solve \(\displaystyle 48\div12\) by finding the unknown factor. 

Possible Answers:

\(\displaystyle 3\)

\(\displaystyle 5\)

\(\displaystyle 4\)

\(\displaystyle 6\)

\(\displaystyle 2\)

Correct answer:

\(\displaystyle 4\)

Explanation:

A factor is a number that is multiplied by another number to produce a given number. 

In this case, the unknown factor is the number multiplied by \(\displaystyle 12\) to get \(\displaystyle 48\)

\(\displaystyle 12\times4=48\)

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