Common Core: 3rd Grade Math : Determine the Unknown Number in a Multiplication or Division Equation: CCSS.Math.Content.3.OA.A.4

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

varsity tutors app store varsity tutors android store

Example Questions

Example Question #181 : 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:

\(\displaystyle 8\)

\(\displaystyle 9\)

\(\displaystyle 11\)

\(\displaystyle 10\)

\(\displaystyle 7\)

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.\(\displaystyle \\ \\14\div 2=7\\ 2\times 7=14\)

Example Question #182 : 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:

\(\displaystyle 7\)

\(\displaystyle 11\)

\(\displaystyle 10\)

\(\displaystyle 8\)

\(\displaystyle 9\)

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

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

Possible Answers:

\(\displaystyle 4\)

\(\displaystyle 5\)

\(\displaystyle 2\)

\(\displaystyle 1\)

\(\displaystyle 3\)

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.\(\displaystyle \\ \\3\div 3=1\\ 3\times 1=3\)

Example Question #184 : Determine The Unknown Number In A Multiplication Or Division Equation: Ccss.Math.Content.3.Oa.A.4

Fill in the blank.\(\displaystyle 70=35\times\)__________

Possible Answers:

\(\displaystyle 2\)

\(\displaystyle 5\)

\(\displaystyle 3\)

\(\displaystyle 6\)

\(\displaystyle 4\)

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.\(\displaystyle \\ \\70\div 35=2\\ 35\times 2=70\)

Example Question #185 : Determine The Unknown Number In A Multiplication Or Division Equation: Ccss.Math.Content.3.Oa.A.4

Fill in the blank.\(\displaystyle 50=5\times\)__________

Possible Answers:

\(\displaystyle 14\)

\(\displaystyle 11\)

\(\displaystyle 10\)

\(\displaystyle 13\)

\(\displaystyle 12\)

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.\(\displaystyle \\ \\50\div 5=10\\ 5\times 10=50\)

Example Question #186 : Determine The Unknown Number In A Multiplication Or Division Equation: Ccss.Math.Content.3.Oa.A.4

Fill in the blank.\(\displaystyle 87=3\times\)__________

Possible Answers:

\(\displaystyle 33\)

\(\displaystyle 30\)

\(\displaystyle 29\)

\(\displaystyle 31\)

\(\displaystyle 32\)

Correct answer:

\(\displaystyle 29\)

Explanation:

The opposite of multiplication is division. In order to find the missing piece of this multiplication problem we can divide.\(\displaystyle \\ \\87\div 3=29\\ 3\times 29=87\)

Example Question #187 : Determine The Unknown Number In A Multiplication Or Division Equation: Ccss.Math.Content.3.Oa.A.4

Fill in the blank.\(\displaystyle 8=2\times\)__________

Possible Answers:

\(\displaystyle 6\)

\(\displaystyle 7\)

\(\displaystyle 4\)

\(\displaystyle 8\)

\(\displaystyle 5\)

Correct answer:

\(\displaystyle 4\)

Explanation:

The opposite of multiplication is division. In order to find the missing piece of this multiplication problem we can divide.\(\displaystyle \\ \\8\div 2=4\\ 2\times 4=8\)

Example Question #188 : Determine The Unknown Number In A Multiplication Or Division Equation: Ccss.Math.Content.3.Oa.A.4

Fill in the blank.\(\displaystyle 14=7\times\)__________

Possible Answers:

\(\displaystyle 2\)

\(\displaystyle 4\)

\(\displaystyle 6\)

\(\displaystyle 3\)

\(\displaystyle 5\)

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.\(\displaystyle \\ \\14\div 7=2\\ 7\times 2=14\)

Example Question #189 : Determine The Unknown Number In A Multiplication Or Division Equation: Ccss.Math.Content.3.Oa.A.4

Fill in the blank.\(\displaystyle 15=15\times\)__________

Possible Answers:

\(\displaystyle 5\)

\(\displaystyle 3\)

\(\displaystyle 1\)

\(\displaystyle 4\)

\(\displaystyle 2\)

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.\(\displaystyle \\ \\15\div 15=1\\ 15\times 1=15\)

Example Question #190 : Determine The Unknown Number In A Multiplication Or Division Equation: Ccss.Math.Content.3.Oa.A.4

Fill in the blank.\(\displaystyle 56=2\times\)__________

Possible Answers:

\(\displaystyle 29\)

\(\displaystyle 31\)

\(\displaystyle 28\)

\(\displaystyle 30\)

\(\displaystyle 32\)

Correct answer:

\(\displaystyle 28\)

Explanation:

The opposite of multiplication is division. In order to find the missing piece of this multiplication problem we can divide.\(\displaystyle \\ \\56\div 2=28\\ 2\times 28=56\)

Learning Tools by Varsity Tutors