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

Solve \(\displaystyle 8145\div3\) by finding the unknown factor.

Possible Answers:

\(\displaystyle 2716\)

\(\displaystyle 2715\)

\(\displaystyle 2713\)

\(\displaystyle 2714\)

\(\displaystyle 2717\)

Correct answer:

\(\displaystyle 2715\)

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 \(\displaystyle 8145\).  \(\displaystyle 3\times 2715=8145\)

Example Question #132 : Understand Division As An Unknown Factor Problem: Ccss.Math.Content.3.Oa.B.6

Solve \(\displaystyle 910\div2\) by finding the unknown factor.

Possible Answers:

\(\displaystyle 456\)

\(\displaystyle 455\)

\(\displaystyle 454\)

\(\displaystyle 457\)

\(\displaystyle 453\)

Correct answer:

\(\displaystyle 455\)

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 \(\displaystyle 910\).  \(\displaystyle 2\times 455=910\)

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