4th Grade Math - Measurement & Data

Annie has a piece of wallpaper that is by . How much of a wall can be covered by this piece of wallpaper?

Explanation

This problem asks us to calculate the amount of space that the wallpaper will cover. The amount of space that something covers can be described as its area. In this case area is calculated by using the formula $A=l \times w$

$A=3\times2$

Fill in the missing piece of the table.

Screen shot 2015 09 01 at 10.27.21 am

Explanation

To solve this problem we can set up a proportion and cross multiply to solve for our unknown.

$\frac{1min}{60 sec}=\frac{3min}{x}$

First we cross multiply.

Then we divide each side by to isolate the .

$\frac{1min(x)}{1min}=\frac{3min(60sec)}{1min}$

Fill in the missing piece of the table.

Screen shot 2015 09 01 at 9.24.25 am

$300\textup,000$

$3000\textup,000$

$30\textup,000$

$3\textup,000$

Explanation

To solve this problem we can set up a proportion and cross multiply to solve for our unknown.

$\frac{1km}{100\textup,000 cm}=\frac{3km}{x}$

First we cross multiply.

$1km(x)=3km(100\textup,000cm)$

Then we divide each side by to isolate the .

$\frac{1km(x)}{1km}=\frac{3km(100\textup,000cm)}{1km}$

$x=300\textup,000 cm$

Fill in the missing piece of the table.

Screen shot 2015 09 01 at 10.27.21 am

Explanation

To solve this problem we can set up a proportion and cross multiply to solve for our unknown.

$\frac{1min}{60 sec}=\frac{3min}{x}$

First we cross multiply.

Then we divide each side by to isolate the .

$\frac{1min(x)}{1min}=\frac{3min(60sec)}{1min}$

Fill in the missing piece of the table.

Screen shot 2015 09 01 at 3.29.15 pm

Explanation

To solve this problem we can set up a proportion and cross multiply to solve for our unknown.

$\frac{1lb}{16oz}=\frac{7lb}{x}$

First we cross multiply.

Then we divide each side by to isolate the .

$\frac{1lb(x)}{1lb}=\frac{7lb(16oz)}{1lb}$

Annie has a piece of wallpaper that is by . How much of a wall can be covered by this piece of wallpaper?

Explanation

$A=3\times2$

Angela has a garden that she wants to put a fence around. How much fencing will she need if her garden is by

Explanation

The fence is going around the garden, so this is a perimeter problem.

What is the length of a rectangular room with a perimeter of and a width of

Explanation

We have the perimeter and the width, so we can plug those values into our equation and solve for our unknown.

Subtract from both sides

Divide by both sides

$\frac{50}{2}=\frac{2l}{2}$

Fill in the missing piece of the table.

Screen shot 2015 09 01 at 3.29.15 pm

Explanation

To solve this problem we can set up a proportion and cross multiply to solve for our unknown.

$\frac{1lb}{16oz}=\frac{7lb}{x}$

First we cross multiply.

Then we divide each side by to isolate the .

$\frac{1lb(x)}{1lb}=\frac{7lb(16oz)}{1lb}$

Annie has a piece of wallpaper that is by . How much of a wall can be covered by this piece of wallpaper?

Explanation

$A=3\times2$

Measurement & Data

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