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7th Math 2.8 Classwork A 22-23

Last updated over 2 years ago
8 questions

Math - [Lesson 2.8]

Teacher: Mr. Kovalik (408) 314-1092

Objective and Summary:
SWBAT use properties of operations to add and subtract rational numbers efficiently
For all problems today, I suggest calculating on your notebook first, then copying your work into Formative afterward.
1

Evaluate the following expression.
-\frac{1}{3}+2\frac{8}{9}+1\frac{1}{3}

CFS:
#1: Appropriately rewrites expression using properties of operations
#2: Accurately evaluates expressions

1

Evaluate the following expression.
1.25-3+2.50-(-0.25)

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

Remember that we can split up mixed numbers. The whole number and fraction will go in the same direction on the number line.

1

Evaluate the following expression.
\frac{1}{5}-2\frac{1}{4}-3\frac{1}{5}

CFS:
#1: Appropriately rewrites expression using properties of operations
#2: Accurately evaluates expressions

MEDIUM Problems
1

Evaluate the following expression.
20.3-(-1.5)+0.5-0.3

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

1

Evaluate the following expression.
-9\frac{1}{10}-(-6\frac{1}{2})-1\frac{9}{10}

CFS:
#1: Appropriately rewrites expression using properties of operations
#2: Accurately evaluates expressions

1

Evaluate the following expression.
1.3+7-4+2.7

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

1

SPICY--Try if you have time.

**SYW in formative is optional**

Evaluate the following expression.
2\frac{1}{3}+\frac{1}{2}+3\frac{1}{5}-\frac{2}{4}-\frac{1}{3}

4

Evaluate the expression.
-5\frac{5}{7}+8-3\frac{2}{7}

**You must SYW in formative to receive full credit**

CFS:
#1: Appropriately rewrites expression using properties of operations
#2: Accurately evaluates expressions

Awesome!

You can...

1) Study/review for your quiz by looking through notes 2.1 through 2.8

2) Practice for your quiz by doing any recommended (starred) IXL skills, expecially for rational numbers