Line Plots/Stem&Leaf
What are range, mode, and median?
Range = difference between largest and smallest value
Mode = # that appears MOST
Median = # in the middle (must be in order)
34 x 6 =
204
Add:
2/5 + 3/5
5/5 or 1 whole
What is 87 hundredths in decimal form?
0.87
Which numbers below are Prime?
1, 5, 19, 18, 21, 23, 30
5, 19, and 23
Remember: prime means it has only 2 factors.
1 is neither prime nor composite.
How do you find how many data points there are on a stem and leaf plot?
Count how many leaves there are
23,824
What is 2.34 in fraction form?
2 and 34/100
Compare:
61.9 ____ 6.32
61.9 > 6.32
What is a Reflex angle?
Any angles larger than 180 degrees but less than 360 degrees
6.5, 5.3, 7.9, 10.1, 6.6, 8.9, 4.5, 7.1, 8.4
Median = 7.1 inches
Range = 5.6 inches
Mr. E called 273 parents last week. He spends 13 minutes on the phone with each parent. How many minutes does Mr. E spend on the phone?
3,549 minutes
Compare:
3/4 ___ 4/5
3/4 < 4/5
12.3 + 5.44 =
17.74
What angles added together make a right angle?
A) 45 degrees
B) 102 degrees
C) 38 degrees
D) 25 degrees
E) 52 degrees
C and E
38 + 52 = 90 degrees
Caterpillar lengths were measured in centimeters below:
16, 5, 9, 13, 7, 11, 5, 14, 15, 8, 4, 10, 2, 12, 14
Find the mode, median, and range of the data.
Range = 14 centimeters
Mode = 5 centimeters
Median = 10 centimeters
Which of the following has a value of 47?
A) 425 ÷ 9
B) 129 ÷ 7
C) 282 ÷ 6
D) 222 ÷ 4
C - remember, instead of dividing you can multiply 47 by the number you are dividing by.
Example:
A) 47 x 9 = 423 (NOT 425)
B) 47 x 7 = 329 (NOT 129)
C) 47 x 6 = 282 (CORRECT!)
D) 47 x 4 = 188 (NOT 222)
4/8 x 6
24/8 or 3
19.03 - 4 =
15.03
Don't forget - you can add a decimal after the whole number 4 is the same as 4.00
134,239
134,000
Create a stem and leaf plot using the ages of people at a birthday party.
12, 45 33, 13, 29, 30, 21, 10, 16, 18, 41, 21, 44
Key:
Stem = tens place (1, 2, 3, 4)
Leaf = one's place (0, 2, 6, 8, 1, 1, 9, 0, 3, 1, 4, 5)
653 ÷ 5 =
130 R 3 or
130 3/5
Subtract the mixed numbers:
10 - 4 2/6
5 4/6
Ms. Cindy spends $3.45 on a pack of pens, $12.78 on a new t-shirt, and $1.99 on a pack of gum. If she gives the cashier a $20, how much change will she receive?
MULTI-STEP! Add first her total and then subtract from $20.00.
Answer = $1.78
Mia is putting a fence around her garden. The length of her fence is 8 ft and the width is 6 ft. She wants to know if there is another way to build her garden using the same area, but with a different perimeter. What side length and width could she use?
Anything that equals an area of 48 ft.
Possible answers:
6 ft x 8 ft
12 ft x 4 ft
2 ft x 24 ft
1 ft x 48 ft