CPM Homework Help : CC1 Problem 1-85

Use your multiplication table to figure out the missing number in each of the following number sentences. Each missing number is represented by $n$ .

$15n=225$

Hint (a):
Remember that the factors of an equation are those that are multiplied. On the multiplication table, factors are listed on the edges. Products, the results of multiplication, are in the middle of the table.
Answer (a):
$n = 15$

$\frac { 84 } { 12 } = n$

Hint (b):
It is the same as $84$ divided by $12$ .

$11\left(n\right)=143$

Hint (c):
Remember to show your work!

$\frac { 182 } { n } = 13$

Answer (d):
$n = 14$

Use the eTool below to determine the missing numbers.
Click the link at right for the full version of the eTool: 1-85 HW eTool