Rational Number Basics
What are Integers?
Whole Numbers and their opposites (Double Points)
Positive and Negative Numbers (Single Points)
Are 7 and 50 compatible numbers?
If no, change one to make them compatible.
No
7 and 49
True or False
If I change a denominator to create common denominators I don't have to change anything else.
False
You have to change the numerator.
0.61-3.42
-2.81
If two numbers being multiplied have different signs, what sign should the answer have?
Negative
Is 5 an accurate estimation?
2 1/2 + 3 9/15
no, it is closer to 6
- 2/5 - 7/10
-1 1/10
-11.8+(-2.2)
14
A negative times a negative is a.....
positive
Estimate the Value
0.11+1.93
2
-3/8 div (-9/16)
2/3
0.9(4.2)
3.78
If two numbers being divided have the same sign, then what sign does their answer have?
Positive
BONUS ROUND
DOUBLE POINTS FOR CORRECT ANSWERS
Is this accurate?
When estimating all I am doing is rounding.
NO
I am also making sure I have compatible numbers.
7/12
7/12
Fix the mistake
-3.8+4-2.5
-0.2-2.5
-2.7
Show board to teacher
What are Rational Numbers?
Teacher will decide.
Estimate the value
4 7/9 + 2 1/8
8
Find the difference of
3/5 and -7/10
1 3/10
Fix the mistake
8.2-(-2.3)+(-6.4)
5.9-6.4
-0.5
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