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7th Math 2.9 A (combined with 2.8 this year, 21-22. DO NOT ASSIGN)

Last updated over 2 years ago
6 questions
1

Do Now
Our Exit Ticket from last time was quite tricky. There are two student responses in the SYW section. Where do you see mistakes? How would you fix the errors?

1

Example 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

In case you missed notes...
There are 2 key things today:
1) Subtracting a negative is still just the same as adding the positive version of that number
2) Look for numbers that make 0 (additive inverses) or whole numbers

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.
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.

Evaluate the following expression.
-24+\frac{1}{2}-12.5

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

4

Evaluate the following expression.

-9.5-(-8)-6.5

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