CPM Homework Help : CC1 Problem 2-75

Solve each generic-rectangle puzzle. For each part, write a multiplication sentence, as you did in problem 2-72.

Generic Rectangle

Top Edge Left is blank

Top Edge Right is $+4$

Left Edge Top is $30$

Interior Top Left is $1500$

Interior Top Right is blank

Left Edge Bottom is blank

Interior Bottom Left is $250$

Interior Bottom Right is blank.

Hint (a):
What do you need to multiply $30$ by to get $1500$ ? This will give you the top edge length of the rectangle. Can you then figure out what must go below the $30$ in order to get the area of $250$ ?

Generic Rectangle

Top Edge Left is blank

Top Edge Middle is Blank

Top Edge Right is $+7$

Left Edge Top is $40$

Interior Top Left is blank

Interior Top Middle is
$2400$

Interior Top Right is blank

Left Edge Bottom is blank

Interior Bottom Left is $1600$

Interior Bottom Middle is blank

Interior Bottom Right is $56$

Some missing parts have been filled in. Do they make sense? Now try to fill in more parts yourself.

Generic Rectangle

Top Edge Left is blank

Top Edge Middle is $\color{blue}{60}$

Top Edge Right is $+7$

Left Edge Top is $40$

Interior Top Left is

$\color{blue}{8000}$

Interior Top Middle is
$2400$

Interior Top Right is

$\color{blue}{280}$

Left Edge Bottom is blank

Interior Bottom Left is $1600$

Interior Bottom Middle is blank

Interior Bottom Right is $56$