Download Name: ______ Practice Quiz 1. A football team loses an average of

Name: ____________
Practice Quiz
Investigation 3: Multiplication Patterns with Integers
1. A football team loses an average of 2 yards per play. How many yards have
they lost after 5 plays? Write a number sentence to show your answer.
Number sentence:
Answer:
2. Together, siblings Brandon, Brooke, Trent, and Trisha owe their parents $400.
Write a number sentence to show how much each sibling owes if they share the
debt equally. (Be sure to use negative numbers where appropriate.)
Number sentence:
Answer:
For Exercises 3-10, find each value. Show any work if necessary.
3. 6-12 =
4. -7 + 9 =
5. -2.3 – (10) =
6. 14 - (-2) =
7.
−18
−3
=
9. −22 ∙ (−3) =
8. 12 ∙ (−3) =
10.
−45
9
=
11. Which operations on integers are commutative? Give numerical examples to
support your answer.
Name: ____________
Practice Quiz
Investigation 3: Multiplication Patterns with Integers
1. A football team loses an average of 2 yards per play. How many yards have
they lost after 5 plays? Write a number sentence to show your answer.
Number sentence:
( 5)( – 2 ) = x
Answer:
x = 10 yards
2. Together, siblings Brandon, Brooke, Trent, and Trisha owe their parents $400.
Write a number sentence to show how much each sibling owes if they share the
debt equally. (Be sure to use negative numbers where appropriate.)
Number sentence:
-400/ 4 = x
Answer:
x = - 100
For Exercises 3-10, find each value. Show any work if necessary.
3. 6-12 =
4. -7 + 9 =
6 + - 12 = -6
2
5. -2.3 – (10) =
6. 14 - (-2) =
-2.3 + (-10) = -12.3
7.
−18
−3
=
14 + (+2) = 16
6
9. −22 ∙ (−3) =
8. 12 ∙ (−3) = - 36
66
10.
−45
9
= -5
11. Which operations on integers are commutative? Give numerical examples to
support your answer. Addition: (2 + 3) + 5 = 2 + (3 + 5) Multiplication: (3 * 5) * 2 = 3*(5*2)
5+ 5
10
= 2 +8
= 10
15 * 2
30
= 3 * 10
= 30