What are Integers?
Whole Numbers and their opposites (Double Points)
Positive and Negative Numbers (Single Points)
Double Points!
The school playground is 52 yards by 77 yards. Estimate the area of the playground
4,000 square yards
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
What property is shown?
2 x (5 x 19) = (2 x 5) x 19
Associative
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
Which property is shown?
5(3+4) = 5(3) + 5(4)
Distributive
If two numbers being divided have the same sign, then what sign does their answer have?
Positive
The school basketball team had the following scores for its games this year. 47, 36, 42, 29, 39, 49, 44, and 32. Estimate how many points they scored.
320 points
(50+40+40+30+40+50+40+30)
(50+50) + (40+40+40+40) + (30+30)
100+ 160+ 60 = 320
7/12
7/12
Fix the mistake
-3.8+4-2.5
-0.2-2.5
-2.7
Show board to teacher
The rectangular table top is feet long and 3 feet wide. Estimate the area of the table top.
21 square feet
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
Alexa hiked miles for 8 Saturdays in a row. Estimate how many miles Alexa hiked in all?
32 miles
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
Show your boards
What is the BEST estimate of the expression
100