4th Grade Math - Multiply or Divide to Solve Word Problems Involving Multiplicative Comparison: CCSS.Math.Content.4.OA.A.2

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

$16\ minutes$

$18\ minutes$

$15\ minutes$

$19\ minutes$

$17\ minutes$

Explanation

The phrase " times as long" tells you that we are going to multiply by .

Let's have represent how long it takes Sara to get dressed.

$4\times4=t$

Think: minutes 4 times would be how many minutes?

Screen shot 2015 10 06 at 9.26.54 am

$4\times4=16$

It takes Cassie minutes to get dressed in the morning. It takes her older sister, Linden, times as long. How long does it take Linden to get dressed?

$42\ minutes$

$44\ minutes$

$41\ minutes$

$45\ minutes$

$43\ minutes$

Explanation

The phrase " times as long" tells you that we are going to multiply by .

Let's have represent how long it takes Linden to get dressed.

$7\times6=42$

Think: minutes times would be how many minutes?

Screen shot 2015 10 06 at 10.44.40 am

$7\times6=42$

It takes Sam minutes to get dressed in the morning. It takes her older sister, Kate, times as long. How long does it take Kate to get dressed?

$56\ minutes$

$60\ minutes$

$57\ minutes$

$59\ minutes$

$58\ minutes$

Explanation

The phrase " times as long" tells you that we are going to multiply by .

Let's have represent how long it takes Kate to get dressed.

$7\times8=t$

Think: minutes times would be how many minutes?

Screen shot 2015 10 06 at 10.49.14 am

$7\times8=56$

It takes Mark minutes to get dressed in the morning. It takes her older sister, Shelly, times as long. How long does it take Shelly to get dressed?

$48\ minutes$

$46\ minutes$

$40\ minutes$

$43\ minutes$

$42\ minutes$

Explanation

The phrase " times as long" tells you that we are going to multiply by .

Let's have represent how long it takes Shelly to get dressed.

$8\times6=t$

Think: minutes times would be how many minutes?

Screen shot 2015 10 06 at 10.34.16 am

$8\times6=48$

It takes Molly $3\textup{ minutes}$ to get dressed in the morning. It takes her older sister, Emily, times as long. How long does it take Emily to get dressed?

$9\textup{ minutes}$

$10\textup{ minutes}$

$12\textup{ minutes}$

$11\textup{ minutes}$

$13\textup{ minutes}$

Explanation

The phrase " times as long" tells you that we are going to multiply by .

Let's have represent how long it takes Emily to get dressed.

$3\times3=t$

Think: minutes times would be how many minutes?

Screen shot 2015 10 06 at 8.59.19 am

$3\times3=9$

It takes Tim 5 minutes to get dressed in the morning. It takes his older sister, Lisa, 4 times as long. How long does it take Lisa to get dressed?

$20\textup{ minutes}$

$19\textup{ minutes}$

$18\textup{ minutes}$

$17\textup{ minutes}$

$16\textup{ minutes}$

Explanation

The phrase " times as long" tells you that we are going to multiply by .

Let's have represent how long it takes Lisa to get dressed.

$5\times4=t$

Think: minutes times would be how many minutes?

Screen shot 2015 10 06 at 9.18.03 am

$5\times4=20$

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

$18\ minutes$

$16\ minutes$

$19\ minutes$

$15\ minutes$

$17\ minutes$

Explanation

The phrase " times as long" tells you that we are going to multiply by .

Let's have represent how long it takes Alison to get dressed.

$6\times3=t$

Think: minutes times would be how many minutes?

Screen shot 2015 10 06 at 9.30.15 am

$6\times3=18$

It takes Nancy $10\textup{ minutes}$ to get dressed in the morning. It takes her older sister, Jessica, times as long. How long does it take Jessica to get dressed?

$60\textup{ minutes}$

$70\textup{ minutes}$

$80\textup{ minutes}$

$50\textup{ minutes}$

$40\textup{ minutes}$

Explanation

The phrase " times as long" tells you that we are going to multiply by .

Let's have represent how long it takes Jessica to get dressed.

$10\times6=t$

Think: minutes times would be how many minutes?

Screen shot 2015 10 06 at 9.36.02 am

$10\times6=60$

It takes Maggie minutes to get dressed in the morning. It takes her older sister, Alex, times as long. How long does it take Alex to get dressed?

$35\ minutes$

$36\ minutes$

$37\ minutes$

$38\ minutes$

$39\ minutes$

Explanation

The phrase " times as long" tells you that we are going to multiply by .

Let's have represent how long it takes Alex to get dressed.

$5\times6=t$

Think: minutes times would be how many minutes?

Screen shot 2015 10 06 at 10.38.56 am

$5\times6=35$

It takes David $4\textup{ minutes}$ to get dressed in the morning. It takes her older sister, Melissa, times as long. How long does it take Melissa to get dressed?