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7th Math 2.8 Classwork B 22-3
By Alex Kovalik (he/him/his)
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Last updated over 2 years ago
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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.
Question 1
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
visibility
View drawing
Question 2
2.
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
visibility
View drawing
Remember that we can split up mixed numbers. The whole number and fraction will go in the same direction on the number line.
Question 3
3.
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
visibility
View drawing
MEDIUM Problems
Question 4
4.
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
visibility
View drawing
Question 5
5.
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
visibility
View drawing
Question 6
6.
Evaluate the following expression.
1.3+7-4+2.7
CFS:
#1:
Appropriately uses properties of operations to rewrite expression
#2:
Accurately evaluates expression
visibility
View drawing
Question 7
7.
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}
visibility
View drawing
Question 8
8.
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
visibility
View drawing
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