Quiz 10/1 - 7th grade

When you subtract a negative number, you change the operation to ___________.

 $example:\ 10-\left(-5\right)=\$  

• Multiplication

• Addition

• Keep it Subtraction

Check 3 problems that you would change the subtraction sign and negative, to a positive and add.

• -10 - (-10)=

• 8 - 20=

• 14 - (-9)=

• 20 - 10 =

• 50 - (-30)=

Solve the problem:

50 - (-7)= _____

• 43

• 57

• 50

• -57

Solve the problem.

28 - (-2)= _____

• 26

• -26

• 30

• 38

Solve the problem

9 - (-4)= ____

Solve the problem.

42 - (-8)= _____

Identify which 2 multiplication rules have a positive product (answer).

• (-) x (-) =

• (-) x (+) =

• (+) x (-) =

• (+) x (+) =

Identify which 2 multiplication rules have a negative product (answer).

• (-) x (-) =

• (-) x (+) =

• (+) x (-) =

• (+) x (+) =

Find the product.

-9 x 2= ____

• -18

• 18

• -16

Find the product.

8 x -1= ____

• 8

• -8

• -1