3rd Grade Math - Answer Questions Using Information from a Bar Graph: CCSS.Math.Content.3.MD.B.3

Use the chart below to answer the question.

Screen shot 2015 09 28 at 9.01.27 am

How many students in Mr. Ray's class have a pet?

Explanation

Each square represents students. Mr. Ray's bar has squares in it. That means we can take $3\times 4$ to find our total.

$3\times4=12$

Use the chart below to answer the question.

Screen shot 2015 09 28 at 10.01.05 am

How many students have a sibling in the second grade group and the first grade group?

Explanation

Each square represents students. The second grade bar has squares in it, which means there are students who have a sibling ( $7\times5=35$ ).The first grade bar has squares in it, which means there are students who have a sibling ( $7\times4=28$ ).

To find the total in both grades we add.

Use the chart below to answer the question.

Screen shot 2015 09 28 at 10.01.05 am

How many more students have a sibling in the second grade group than the fourth grade group?

Explanation

Each square represents students. The second grade bar has squares in it, which means there are students who have a sibling ( $7\times5=35$ ).The fourth grade bar has squares in it, which means there are students who have a sibling ( $7\times3=21$ ).

To find the difference we subtract.

Use the chart below to answer the question.

Screen shot 2015 09 28 at 10.01.05 am

How many students in first grade have a sibling?

Explanation

Each square represents students. The first grade bar has squares in it. That means we can take $7\times 4$ to find our total.

$7\times4=28$

Use the chart below to answer the question.

Screen shot 2015 09 28 at 10.01.05 am

How many more students have a sibling in the second grade group than the third grade group?

Explanation

Each square represents students. The second grade bar has squares in it, which means there are students who have a sibling ( $7\times5=35$ ).The third grade bar has squares in it, which means there are students who have a sibling ( $7\times2=14$ ).

To find the difference we subtract.

Use the chart below to answer the question.

Screen shot 2015 09 28 at 9.01.27 am

How many students have pets in Mr. Ray's class and Ms. Hen's class?

Explanation

Each square represents students. Mr. Ray's bar has squares in it, which means he has students with pets ( $3\times4=12$ ). Ms. Hen's bar has squares in it, which means she has students with pets ( $3\times2=6$ ).

To find the total in both classes we add.

Use the chart below to answer the question.

Screen shot 2015 09 28 at 10.01.05 am

How many more students have a sibling in the first grade group than the third grade group?

Explanation

Each square represents students. The first grade bar has squares in it, which means there are students who have a sibling ( $7\times4=28$ ).The third grade bar has squares in it, which means there are students who have a sibling ( $7\times2=14$ ).

To find the difference we subtract.

Use the chart below to answer the question.

Screen shot 2015 09 28 at 9.01.27 am

How many more students have a pet in Ms. Miller's class than Ms. Hen's class?

Explanation

Each square represents students. Ms. Miller's bar has squares in it, which means she has students with pets ( $3\times3=9$ ). Ms. Hen's bar has squares in it, which means she has students with pets ( $3\times2=6$ ).