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 #491 : Representing And Solving Problems Involving Multiplication And Division

Fill in the blank.\(\displaystyle 80=20\times\)__________

Possible Answers:

\(\displaystyle 6\)

\(\displaystyle 5\)

\(\displaystyle 8\)

\(\displaystyle 7\)

\(\displaystyle 4\)

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.\(\displaystyle \\ \\80\div 20=4\\ 20\times 4=80\)

Example Question #492 : Representing And Solving Problems Involving Multiplication And Division

Fill in the blank.\(\displaystyle 6=2\times\)__________

Possible Answers:

\(\displaystyle 3\)

\(\displaystyle 5\)

\(\displaystyle 4\)

\(\displaystyle 6\)

\(\displaystyle 7\)

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.\(\displaystyle \\ \\6\div 2=3\\ 2\times 3=6\)

Example Question #493 : Representing And Solving Problems Involving Multiplication And Division

Fill in the blank.\(\displaystyle 32=2\times\)__________

Possible Answers:

\(\displaystyle 19\)

\(\displaystyle 16\)

\(\displaystyle 18\)

\(\displaystyle 20\)

\(\displaystyle 17\)

Correct answer:

\(\displaystyle 16\)

Explanation:

The opposite of multiplication is division. In order to find the missing piece of this multiplication problem we can divide.\(\displaystyle \\ \\32\div 2=16\\ 2\times 16=32\)

Example Question #494 : Representing And Solving Problems Involving Multiplication And Division

Fill in the blank.\(\displaystyle 63=3\times\)__________

Possible Answers:

\(\displaystyle 25\)

\(\displaystyle 23\)

\(\displaystyle 22\)

\(\displaystyle 24\)

\(\displaystyle 21\)

Correct answer:

\(\displaystyle 21\)

Explanation:

The opposite of multiplication is division. In order to find the missing piece of this multiplication problem we can divide.\(\displaystyle \\ \\63\div 3=21\\ 3\times 21=63\)

Example Question #495 : Representing And Solving Problems Involving Multiplication And Division

Fill in the blank.\(\displaystyle 28=28\times\)__________

Possible Answers:

\(\displaystyle 2\)

\(\displaystyle 4\)

\(\displaystyle 5\)

\(\displaystyle 3\)

\(\displaystyle 1\)

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.\(\displaystyle \\ \\28\div 28=1\\ 28\times 1=28\)

Example Question #496 : Representing And Solving Problems Involving Multiplication And Division

Fill in the blank.\(\displaystyle 13=13\times\)__________

Possible Answers:

\(\displaystyle 3\)

\(\displaystyle 1\)

\(\displaystyle 2\)

\(\displaystyle 5\)

\(\displaystyle 4\)

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.\(\displaystyle \\ \\13\div 13=1\\ 13\times 1=13\)

Example Question #497 : Representing And Solving Problems Involving Multiplication And Division

Fill in the blank.\(\displaystyle 72=2\times\)__________

Possible Answers:

\(\displaystyle 36\)

\(\displaystyle 39\)

\(\displaystyle 37\)

\(\displaystyle 38\)

\(\displaystyle 40\)

Correct answer:

\(\displaystyle 36\)

Explanation:

The opposite of multiplication is division. In order to find the missing piece of this multiplication problem we can divide.\(\displaystyle \\ \\72\div 2=36\\ 2\times 36=72\)

Example Question #498 : Representing And Solving Problems Involving Multiplication And Division

Fill in the blank.\(\displaystyle 50=25\times\)__________

Possible Answers:

\(\displaystyle 3\)

\(\displaystyle 5\)

\(\displaystyle 2\)

\(\displaystyle 6\)

\(\displaystyle 4\)

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.\(\displaystyle \\ \\50\div 25=2\\ 25\times 2=50\)

Example Question #499 : Representing And Solving Problems Involving Multiplication And Division

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 #500 : Representing And Solving Problems Involving Multiplication And Division

Fill in the blank.\(\displaystyle 6=6\times\)__________

Possible Answers:

\(\displaystyle 4\)

\(\displaystyle 3\)

\(\displaystyle 5\)

\(\displaystyle 2\)

\(\displaystyle 1\)

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.\(\displaystyle \\ \\6\div 6=1\\ 6\times 1=6\)

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