Common Core: 4th Grade Math : Use the four operations with whole numbers to solve problems

Study concepts, example questions & explanations for Common Core: 4th Grade Math

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Example Questions

Example Question #3195 : Ssat Elementary Level Quantitative (Math)

What equation is described below? 

\displaystyle 6 is \displaystyle 3 times as many as \displaystyle 2

Possible Answers:

\displaystyle 6\div3=2

\displaystyle 2\times3=6

\displaystyle 2+3=6

\displaystyle 3+2=6

\displaystyle 6\div2=3

Correct answer:

\displaystyle 2\times3=6

Explanation:

\displaystyle 6 is \displaystyle 3 times as many as \displaystyle 2

In this phrase, "is" represents equal and "times" means multiplication. 

So we have \displaystyle 2\times3=6

Example Question #581 : How To Multiply

What equation is described here: \displaystyle 11 is \displaystyle 1 times as many as \displaystyle 11

Possible Answers:

\displaystyle 11\div1=11

\displaystyle 11-1=10

\displaystyle 10+1=11

\displaystyle 11\times1=11

\displaystyle 11\div11=1

Correct answer:

\displaystyle 11\times1=11

Explanation:

\displaystyle 11 is \displaystyle 1 times as many as \displaystyle 11

In this phrase, "is" represents equal and "times" means multiplication. 

So we have \displaystyle 11\times1=11

Example Question #3193 : Ssat Elementary Level Quantitative (Math)

What equation is described below? 

\displaystyle 8 is \displaystyle 2 times as many as \displaystyle 4

Possible Answers:

\displaystyle 4+4=8

\displaystyle 4\times2=8

\displaystyle 8\div4=2

\displaystyle 8-4=4

\displaystyle 8\div2=4

Correct answer:

\displaystyle 4\times2=8

Explanation:

\displaystyle 8 is \displaystyle 2 times as many as \displaystyle 4

In this phrase, "is" represents equal and "times" means multiplication. 

 So we have \displaystyle 4\times2=8

Example Question #3194 : Ssat Elementary Level Quantitative (Math)

What equation is described below? 

\displaystyle 9 is \displaystyle 3 times as many as \displaystyle 3

Possible Answers:

\displaystyle 3+3=9

\displaystyle 3\div3=9

\displaystyle 9-3=3

\displaystyle 9\div3=3

\displaystyle 3\times3=9

Correct answer:

\displaystyle 3\times3=9

Explanation:

\displaystyle 9 is \displaystyle 3 times as many as \displaystyle 3

In this phrase, "is" represents equal and "times" means multiplication. 

So we have \displaystyle 3\times3=9

Example Question #41 : Use The Four Operations With Whole Numbers To Solve Problems

What equation is described below? 

\displaystyle 18 is \displaystyle 9 times as many as \displaystyle 2

Possible Answers:

\displaystyle 9-2=18

\displaystyle 18\div2=9

\displaystyle 18\div9=2

\displaystyle 9+2=18

\displaystyle 2\times9=18

Correct answer:

\displaystyle 2\times9=18

Explanation:

\displaystyle 18 is \displaystyle 9 times as many as \displaystyle 2

In this phrase, "is" represents equal and "times" means multiplication. 

So we have \displaystyle 2\times9=18

Example Question #41 : Common Core Math: Grade 4

What equation is described below? 

\displaystyle 14 is \displaystyle 7 times as many as \displaystyle 2

Possible Answers:

\displaystyle 14\div2=7

\displaystyle 2\times7=14

\displaystyle 14\times7=2

\displaystyle 14\div7=2

\displaystyle 7+2=14

Correct answer:

\displaystyle 2\times7=14

Explanation:

\displaystyle 14 is \displaystyle 7 times as many as \displaystyle 2

In this phrase, "is" represents equal and "times" means multiplication. 

So we have \displaystyle 2\times7=14

Example Question #3201 : Numbers And Operations

What equation is described below? 

\displaystyle 10 is \displaystyle 5 times as many as \displaystyle 2

Possible Answers:

\displaystyle 2+5=10

\displaystyle 10\div2=5

\displaystyle 2\times5=10

\displaystyle 5+2=10

\displaystyle 10\div5=2

Correct answer:

\displaystyle 2\times5=10

Explanation:

\displaystyle 10 is \displaystyle 5 times as many as \displaystyle 2

In this phrase, "is" represents equal and "times" means multiplication. 

So we have \displaystyle 2\times5=10

Example Question #3203 : Ssat Elementary Level Quantitative (Math)

What equation is described below? 

\displaystyle 21 is \displaystyle 7 times as many as \displaystyle 3

Possible Answers:

\displaystyle 7+3=21

\displaystyle 21\div7=3

\displaystyle 3\times7=21

\displaystyle 3+7=21

\displaystyle 21\div3=7

Correct answer:

\displaystyle 3\times7=21

Explanation:

\displaystyle 21 is \displaystyle 7 times as many as \displaystyle 3

In this phrase, "is" represents equal and "times" means multiplication. 

So we have \displaystyle 3\times7=21

Example Question #41 : Use The Four Operations With Whole Numbers To Solve Problems

It takes Hannah \displaystyle 4 minutes to get dressed in the morning. It takes her older sister, Sara, \displaystyle 4 times as long. How long does it take Sara to get dressed?

Possible Answers:

\displaystyle 18\ minutes

\displaystyle 17\ minutes

\displaystyle 16\ minutes

\displaystyle 15\ minutes

\displaystyle 19\ minutes

Correct answer:

\displaystyle 16\ minutes

Explanation:

The phrase "\displaystyle 4 times as long" tells you that we are going to multiply by \displaystyle 4

Let's have \displaystyle t represent how long it takes Sara to get dressed. 

\displaystyle 4\times4=t

Think: \displaystyle 4 minutes 4 times would be how many minutes? 

Screen shot 2015 10 06 at 9.26.54 am

\displaystyle 4\times4=16

Example Question #41 : Common Core Math: Grade 4

It takes Charlie \displaystyle 6 minutes to get dressed in the morning. It takes her older sister, Alison, \displaystyle 3 times as long. How long does it take Alison to get dressed? 

 

Possible Answers:

\displaystyle 15\ minutes

\displaystyle 16\ minutes

\displaystyle 17\ minutes

\displaystyle 19\ minutes

\displaystyle 18\ minutes

Correct answer:

\displaystyle 18\ minutes

Explanation:

The phrase "\displaystyle 3 times as long" tells you that we are going to multiply by \displaystyle 3

Let's have \displaystyle t represent how long it takes Alison to get dressed. 

\displaystyle 6\times3=t

Think: \displaystyle 6 minutes \displaystyle 3 times would be how many minutes? 

Screen shot 2015 10 06 at 9.30.15 am

\displaystyle 6\times3=18

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