Common Core: 5th Grade Math : Common Core Math: Grade 5

Study concepts, example questions & explanations for Common Core: 5th Grade Math

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Example Questions

Example Question #51 : Algebra

Solve:

\(\displaystyle 4\times8+(56-17)\)

 

Possible Answers:

\(\displaystyle 78\)

\(\displaystyle 83\)

\(\displaystyle 93\)

\(\displaystyle 71\)

\(\displaystyle 89\)

Correct answer:

\(\displaystyle 71\)

Explanation:

\(\displaystyle 4\times8+(56-17)\)

When solving this problem, remember order of operations PEMDAS. The parentheses come first followed by the multiplication, and then the addition. 

\(\displaystyle 56-17=39\)

\(\displaystyle 4\times8=32\)

\(\displaystyle 32+39=71\)

Example Question #51 : Operations & Algebraic Thinking

Solve:

\(\displaystyle 87-(11\times5)\)

 

Possible Answers:

\(\displaystyle 53\)

\(\displaystyle 47\)

\(\displaystyle 28\)

\(\displaystyle 32\)

\(\displaystyle 36\)

Correct answer:

\(\displaystyle 32\)

Explanation:

\(\displaystyle 87-(11\times5)\)

When solving this problem, remember order of operations PEMDAS. The parentheses come first followed by the subtraction. 

\(\displaystyle 11\times5=55\)

\(\displaystyle 87-55=32\)

Example Question #48 : How To Solve Two Step Equations

Solve:

\(\displaystyle 6\times(2+7)\)

 

Possible Answers:

\(\displaystyle 58\)

\(\displaystyle 36\)

\(\displaystyle 40\)

\(\displaystyle 54\)

\(\displaystyle 22\)

Correct answer:

\(\displaystyle 54\)

Explanation:

\(\displaystyle 6\times(2+7)\)

When solving this problem, remember order of operations PEMDAS. The parentheses come first followed by the multiplication. 

\(\displaystyle 2+7=9\)

\(\displaystyle 6\times9=54\)

Example Question #49 : How To Solve Two Step Equations

Solve:

\(\displaystyle 6\times (37-30)\div3\)

 

Possible Answers:

\(\displaystyle 12\)

\(\displaystyle 17\)

\(\displaystyle 20\)

\(\displaystyle 14\)

\(\displaystyle 11\)

Correct answer:

\(\displaystyle 14\)

Explanation:

\(\displaystyle 6\times (37-30)\div3\)

When solving this problem, remember order of operations PEMDAS. The parentheses come first, followed by the multiplication, and then the division.

\(\displaystyle 37-30=7\)

\(\displaystyle 6\times7=42\)

\(\displaystyle 42\div3=14\) 

Example Question #51 : How To Solve Two Step Equations

Solve:

\(\displaystyle 4\times(47-33)\)

 

Possible Answers:

\(\displaystyle 67\)

\(\displaystyle 64\)

\(\displaystyle 70\)

\(\displaystyle 58\)

\(\displaystyle 56\)

Correct answer:

\(\displaystyle 56\)

Explanation:

\(\displaystyle 4\times(47-33)\)

When solving this problem, remember order of operations PEMDAS. The parentheses come first followed by the multiplication. 

\(\displaystyle 47-33=14\)

\(\displaystyle 4\times14=56\)

Example Question #52 : Orders Of Operations

Solve:

\(\displaystyle 49+(84-52)\div8\)

 

Possible Answers:

\(\displaystyle 65\)

\(\displaystyle 53\)

\(\displaystyle 56\)

\(\displaystyle 49\)

\(\displaystyle 58\)

Correct answer:

\(\displaystyle 53\)

Explanation:

\(\displaystyle 49+(84-52)\div8\)

When solving this problem, remember order of operations PEMDAS. The parentheses come first, followed by the division, and then the addition. 

\(\displaystyle 84-52=32\)

\(\displaystyle 32\div8=4\)

\(\displaystyle 49+4=53\)

Example Question #52 : Operations & Algebraic Thinking

Solve:

\(\displaystyle 7\times(83-72)\)

 

Possible Answers:

\(\displaystyle 77\)

\(\displaystyle 42\)

\(\displaystyle 35\)

\(\displaystyle 21\)

\(\displaystyle 49\)

Correct answer:

\(\displaystyle 77\)

Explanation:

\(\displaystyle 7\times(83-72)\)

When solving this problem, remember order of operations PEMDAS. The parentheses come first followed by the multiplication. 

\(\displaystyle 83-72=11\)

\(\displaystyle 7\times11=77\)

Example Question #51 : Operations & Algebraic Thinking

Solve:

\(\displaystyle 120\div(97-37)\)

 

Possible Answers:

\(\displaystyle 2\)

\(\displaystyle 4\)

\(\displaystyle 10\)

\(\displaystyle 6\)

\(\displaystyle 8\)

Correct answer:

\(\displaystyle 2\)

Explanation:

\(\displaystyle 120\div(97-37)\)

When solving this problem, remember order of operations PEMDAS. The parentheses come first followed by the division. 

\(\displaystyle 97-37=60\)

\(\displaystyle 120\div60=2\)

Example Question #54 : Orders Of Operations

Solve:

\(\displaystyle 32+(45-38)\times 7\)

 

Possible Answers:

\(\displaystyle 73\)

\(\displaystyle 104\)

\(\displaystyle 97\)

\(\displaystyle 81\)

\(\displaystyle 67\)

Correct answer:

\(\displaystyle 81\)

Explanation:

\(\displaystyle 32+(45-38)\times 7\)

When solving this problem, remember order of operations PEMDAS. The parentheses come first, followed by the multiplication, and then the addition. 

\(\displaystyle 45-38=7\)

\(\displaystyle 7\times7=49\)

\(\displaystyle 32+49=81\)

Example Question #53 : Operations & Algebraic Thinking

Solve:

\(\displaystyle 121\div(84-73)\)

 

Possible Answers:

\(\displaystyle 16\)

\(\displaystyle 22\)

\(\displaystyle 27\)

\(\displaystyle 11\)

\(\displaystyle 13\)

Correct answer:

\(\displaystyle 11\)

Explanation:

\(\displaystyle 121\div(84-73)\)

When solving this problem, remember order of operations PEMDAS. The parentheses come first followed by the division. 

\(\displaystyle 84-73=11\)

\(\displaystyle 121\div11=11\)

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