Log in
Sign up for FREE
arrow_back
Library

7th Math 2.16 Version B

star
star
star
star
star
Last updated over 2 years ago
8 questions
1
1
1
1
1
1
1
4

Math - [Lesson 2.16]

Teacher: Mr. Kovalik (408) 314-1092

Objective and Summary:
SWBAT efficiently multiply and divide rational numbers by using properties of operations
Question 1
1.

Calculate--Evaluate the expression below (rewrite it as a single number).
For this problem only, please show your work on Formative.
5\times\frac{3}{2}\times3\times(-2)

CFS:
#1: Appropriately uses properties of operations to reorder expression
#2: Accurately evaluates expression

For the rest of independent practice, just do your calculations on the SYW page of your notebook. Type answers into Formative to check if they are correct.
Question 2
2.

Calculate--Evaluate the expression.
\frac{3}{8}\times9\cdot(-16)

CFS:
#1: Appropriately uses properties of operations to reorder expression
#2: Accurately evaluates expression

Question 3
3.

Calculate--Evaluate the expression.
-1.3\times\frac{1}{2}\times(-4)\times10

CFS:
#1: Appropriately uses properties of operations to reorder expression
#2: Accurately evaluates expression

MEDIUM PROBLEMS
Question 4
4.

KCF is Back!--Evaluate the expression.

\frac{1}{2}\div(-\frac{1}{4})\times(-9)\times-(\frac{2}{3})

CFS:
#1: Appropriately uses properties of operations to reorder expression
#2: Accurately evaluates expression

Question 5
5.

Mix n Match--Don't calculate! Use the rules for signs to determine if these expressions will have positive or negative answers.

  • -5\times(-10)\times(-\frac{1}{2})\div4\times1000
  • \frac{3}{8}\times(-\frac{1}{2})\times(-14)\times(-15)\div(-32)
  • 200\div10\times(-\frac{1}{5})\div(-4)
  • -\frac{7}{8}\times(-\frac{3}{25})\times(-235)\div(-72)
  • Positive Answers
  • Negative Answers
Question 6
6.

Efficiency--Use the commutative property of multiplication to evaluate the expression.
Hint: Try to multiply fractions so that they make whole numbers first.

-2(\frac{1}{3})\times4\times3\times\frac{1}{4}

CFS:
#1: Appropriately uses properties of operations to reorder expression
#2: Accurately evaluates expression

Question 7
7.

SPICY--Try if you have time.
(Remember that you can rewrite division as multiplication. Think KCF)

4\div\frac{2}{3}\times(-8)\times10\times(-\frac{3}{4})

CFS:
#1: Appropriately uses properties of operations to reorder expression
#2: Accurately evaluates expression

Question 8
8.

Evaluate the expression using properties of operations.
To get any credit, you MUST show your work on Formative.
10\times(-16)\times(\frac{-3}{2})\times\frac{1}{8}

CFS:
#1: Appropriately uses properties of operations to reorder expression
#2: Accurately evaluates expression

Awesome! Remember if you were able to finish early that you should push yourself with more practice.

1) Start with the new starred/recommended skills on IXL

2) Work on above grade level skills on IXL