Common Core: 3rd Grade Math : Representing and Solving Problems Involving Multiplication and Division

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

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Example Questions

Example Question #251 : Determine The Unknown Number In A Multiplication Or Division Equation: Ccss.Math.Content.3.Oa.A.4

Fill in the blank.\(\displaystyle 88=8\times\)__________

Possible Answers:

\(\displaystyle 13\)

\(\displaystyle 15\)

\(\displaystyle 14\)

\(\displaystyle 12\)

\(\displaystyle 11\)

Correct answer:

\(\displaystyle 11\)

Explanation:

The opposite of multiplication is division. In order to find the missing piece of this multiplication problem we can divide.\(\displaystyle \\ \\88\div 8=11\\ 8\times 11=88\)

Example Question #252 : Determine The Unknown Number In A Multiplication Or Division Equation: Ccss.Math.Content.3.Oa.A.4

Fill in the blank.\(\displaystyle 92=46\times\)__________

Possible Answers:

\(\displaystyle 5\)

\(\displaystyle 2\)

\(\displaystyle 6\)

\(\displaystyle 4\)

\(\displaystyle 3\)

Correct answer:

\(\displaystyle 2\)

Explanation:

The opposite of multiplication is division. In order to find the missing piece of this multiplication problem we can divide.\(\displaystyle \\ \\92\div 46=2\\ 46\times 2=92\)

Example Question #253 : Determine The Unknown Number In A Multiplication Or Division Equation: Ccss.Math.Content.3.Oa.A.4

Fill in the blank.\(\displaystyle 88=8\times\)__________

Possible Answers:

\(\displaystyle 12\)

\(\displaystyle 15\)

\(\displaystyle 11\)

\(\displaystyle 14\)

\(\displaystyle 13\)

Correct answer:

\(\displaystyle 11\)

Explanation:

The opposite of multiplication is division. In order to find the missing piece of this multiplication problem we can divide.\(\displaystyle \\ \\88\div 8=11\\ 8\times 11=88\)

Example Question #254 : Determine The Unknown Number In A Multiplication Or Division Equation: Ccss.Math.Content.3.Oa.A.4

Fill in the blank.\(\displaystyle 19=19\times\)__________

Possible Answers:

\(\displaystyle 1\)

\(\displaystyle 2\)

\(\displaystyle 5\)

\(\displaystyle 4\)

\(\displaystyle 3\)

Correct answer:

\(\displaystyle 1\)

Explanation:

The opposite of multiplication is division. In order to find the missing piece of this multiplication problem we can divide.\(\displaystyle \\ \\19\div 19=1\\ 19\times 1=19\)

Example Question #255 : Determine The Unknown Number In A Multiplication Or Division Equation: Ccss.Math.Content.3.Oa.A.4

Fill in the blank.\(\displaystyle 84=12\times\)__________

Possible Answers:

\(\displaystyle 9\)

\(\displaystyle 7\)

\(\displaystyle 8\)

\(\displaystyle 11\)

\(\displaystyle 10\)

Correct answer:

\(\displaystyle 7\)

Explanation:

The opposite of multiplication is division. In order to find the missing piece of this multiplication problem we can divide.\(\displaystyle \\ \\84\div 12=7\\ 12\times 7=84\)

Example Question #256 : Determine The Unknown Number In A Multiplication Or Division Equation: Ccss.Math.Content.3.Oa.A.4

Fill in the blank.\(\displaystyle 24=24\times\)__________

Possible Answers:

\(\displaystyle 3\)

\(\displaystyle 2\)

\(\displaystyle 4\)

\(\displaystyle 5\)

\(\displaystyle 1\)

Correct answer:

\(\displaystyle 1\)

Explanation:

The opposite of multiplication is division. In order to find the missing piece of this multiplication problem we can divide.\(\displaystyle \\ \\24\div 24=1\\ 24\times 1=24\)

Example Question #257 : Determine The Unknown Number In A Multiplication Or Division Equation: Ccss.Math.Content.3.Oa.A.4

Fill in the blank.\(\displaystyle 96=3\times\)__________

Possible Answers:

\(\displaystyle 33\)

\(\displaystyle 34\)

\(\displaystyle 35\)

\(\displaystyle 32\)

\(\displaystyle 36\)

Correct answer:

\(\displaystyle 32\)

Explanation:

The opposite of multiplication is division. In order to find the missing piece of this multiplication problem we can divide.\(\displaystyle \\ \\96\div 3=32\\ 3\times 32=96\)

Example Question #258 : Determine The Unknown Number In A Multiplication Or Division Equation: Ccss.Math.Content.3.Oa.A.4

Fill in the blank.\(\displaystyle 30=3\times\)__________

Possible Answers:

\(\displaystyle 10\)

\(\displaystyle 14\)

\(\displaystyle 11\)

\(\displaystyle 13\)

\(\displaystyle 12\)

Correct answer:

\(\displaystyle 10\)

Explanation:

The opposite of multiplication is division. In order to find the missing piece of this multiplication problem we can divide.\(\displaystyle \\ \\30\div 3=10\\ 3\times 10=30\)

Example Question #541 : Representing And Solving Problems Involving Multiplication And Division

Fill in the blank.\(\displaystyle 78=26\times\)__________

Possible Answers:

\(\displaystyle 4\)

\(\displaystyle 5\)

\(\displaystyle 3\)

\(\displaystyle 7\)

\(\displaystyle 6\)

Correct answer:

\(\displaystyle 3\)

Explanation:

The opposite of multiplication is division. In order to find the missing piece of this multiplication problem we can divide.\(\displaystyle \\ \\78\div 26=3\\ 26\times 3=78\)

Example Question #542 : Representing And Solving Problems Involving Multiplication And Division

Fill in the blank.\(\displaystyle 75=5\times\)__________

Possible Answers:

\(\displaystyle 18\)

\(\displaystyle 16\)

\(\displaystyle 19\)

\(\displaystyle 15\)

\(\displaystyle 17\)

Correct answer:

\(\displaystyle 15\)

Explanation:

The opposite of multiplication is division. In order to find the missing piece of this multiplication problem we can divide.\(\displaystyle \\ \\75\div 5=15\\ 5\times 15=75\)

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