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

Fill in the blank. 

\(\displaystyle 66=11\times\) __________

 

Possible Answers:

\(\displaystyle 7\)

\(\displaystyle 11\)

\(\displaystyle 8\)

\(\displaystyle 9\)

\(\displaystyle 10\)

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. 

\(\displaystyle 66\div11=6\)

\(\displaystyle 6\times11=66\)

Example Question #371 : Representing And Solving Problems Involving Multiplication And Division

Fill in the blank. 

\(\displaystyle 84=12\times\) __________

 

Possible Answers:

\(\displaystyle 7\)

\(\displaystyle 9\)

\(\displaystyle 8\)

\(\displaystyle 6\)

\(\displaystyle 5\)

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. 

\(\displaystyle 84\div12=7\)

\(\displaystyle 12\times7=84\)

Example Question #84 : Determine The Unknown Number In A Multiplication Or Division Equation: Ccss.Math.Content.3.Oa.A.4

Fill in the blank. 

\(\displaystyle 12=1\times\) __________

 

Possible Answers:

\(\displaystyle 12\)

\(\displaystyle 8\)

\(\displaystyle 10\)

\(\displaystyle 9\)

\(\displaystyle 11\)

Correct answer:

\(\displaystyle 12\)

Explanation:

The opposite of multiplication is division. In order to find the missing piece of this multiplication problem we can divide. 

\(\displaystyle 12\div1=12\)

\(\displaystyle 1\times12=12\)

Example Question #85 : Determine The Unknown Number In A Multiplication Or Division Equation: Ccss.Math.Content.3.Oa.A.4

Fill in the blank. 

\(\displaystyle 14=2\times\) __________

 

Possible Answers:

\(\displaystyle 8\)

\(\displaystyle 10\)

\(\displaystyle 7\)

\(\displaystyle 9\)

\(\displaystyle 11\)

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. 

\(\displaystyle 14\div2=7\)

\(\displaystyle 2\times7=14\)

Example Question #372 : Representing And Solving Problems Involving Multiplication And Division

Fill in the blank. 

\(\displaystyle 27=3\times\) __________

 

Possible Answers:

\(\displaystyle 10\)

\(\displaystyle 7\)

\(\displaystyle 8\)

\(\displaystyle 9\)

\(\displaystyle 6\)

Correct answer:

\(\displaystyle 9\)

Explanation:

The opposite of multiplication is division. In order to find the missing piece of this multiplication problem we can divide. 

\(\displaystyle 27\div3=9\)

\(\displaystyle 3\times9=27\)

Example Question #82 : Determine The Unknown Number In A Multiplication Or Division Equation: Ccss.Math.Content.3.Oa.A.4

Fill in the blank. 

\(\displaystyle 44=4\times\) __________

 

Possible Answers:

\(\displaystyle 9\)

\(\displaystyle 11\)

\(\displaystyle 7\)

\(\displaystyle 8\)

\(\displaystyle 10\)

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. 

\(\displaystyle 44\div4=11\)

\(\displaystyle 4\times11=44\)

Example Question #81 : Determine The Unknown Number In A Multiplication Or Division Equation: Ccss.Math.Content.3.Oa.A.4

Fill in the blank. 

\(\displaystyle 30=5\times\) __________

 

Possible Answers:

\(\displaystyle 8\)

\(\displaystyle 9\)

\(\displaystyle 5\)

\(\displaystyle 6\)

\(\displaystyle 7\)

Correct answer:

\(\displaystyle 6\)

Explanation:

The opposite of multiplication is division. In order to find the missing piece of this multiplication problem we can divide. 

\(\displaystyle 30\div5=6\)

\(\displaystyle 5\times6=30\)

Example Question #89 : Determine The Unknown Number In A Multiplication Or Division Equation: Ccss.Math.Content.3.Oa.A.4

Fill in the blank. 

\(\displaystyle 6=6\times\) __________

 

Possible Answers:

\(\displaystyle 3\)

\(\displaystyle 1\)

\(\displaystyle 2\)

\(\displaystyle 0\)

\(\displaystyle 4\)

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. 

\(\displaystyle 6\div6=1\)

\(\displaystyle 6\times1=6\)

Example Question #91 : Determine The Unknown Number In A Multiplication Or Division Equation: Ccss.Math.Content.3.Oa.A.4

Fill in the blank. 

\(\displaystyle 63=7\times\) __________

 

Possible Answers:

\(\displaystyle 7\)

\(\displaystyle 10\)

\(\displaystyle 9\)

\(\displaystyle 11\)

\(\displaystyle 8\)

Correct answer:

\(\displaystyle 9\)

Explanation:

The opposite of multiplication is division. In order to find the missing piece of this multiplication problem we can divide. 

\(\displaystyle 63\div7=9\)

\(\displaystyle 7\times9=63\)

Example Question #91 : 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:

\(\displaystyle 10\)

\(\displaystyle 9\)

\(\displaystyle 11\)

\(\displaystyle 7\)

\(\displaystyle 8\)

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. 

\(\displaystyle 88\div8=11\)

\(\displaystyle 8\times11=88\)

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