Transcript Math Madness/CRCTBlitzx

CRCT
Math Blitz!
?
Which figure is NOT a polygon?
About how many more 7th graders
took the bus compared to 5th graders?
about 20 more students
List the first 3 multiples of 7.
7 , 14, 21
Convert 3 ¼ to an improper fraction.
13/4
Calculate!
A. $5.76
A jacket costs $72 plus
8% sales tax. What is
B. $9.00
the total cost of the
jacket?
C. $77.76
D. $81.00
Write 1/4 as a percent.
25%
x+2=5
Expression or an Equation?
equation
TRUE or FALSE:
A figure can only have one type of
symmetry.
False- they can have both rotation and reflection
symmetry.
How long is a yardstick?
___ yards
___ feet
___ inches
1 yard, 3 feet, 36 inches
Calculate
A novel is 144 pages long. If Jorge has read the
first 36 pages, what percent of the book has he
completed?
A. 14%
B. 25%
C. 36%
D. 75%
Surface Area or Volume?
The amount of air in a room…
Volume
What is the constant of
proportionality?
½
You can pick any point on the line, such as (2,1).
Remember… k= y/x so k= ½ .
Complete the sentence:
Probability values range from __
0 to __.
1
What is the mode of the data below?
22. It is shown twice, more than
any other value.
Calculate!
Julio’s car travels 69
miles on 3 gallons
of
gasoline. How
many miles can he
travel on 7 gallons
of gasoline?
A.
21
B. 23
C. 161
D. 207
Prime or Composite?
39
Composite – 1, 3, 13, 39
Convert 10/2 to a mixed number.
5
Write 2/3 as a decimal.
0.666… or 0.6
Write this equation:
The product of 4 and a number is 22.
4x = 22
Any variable is correct.)
Calculate!
Jon has
3
of a dollar, Pasha has $0.65, Marie
5
has 7 of a dollar, and Karen has $0.62. Who
10
has the smallest amount of money?
A. Jon
B. Pasha
C. Marie
D. Karen
How many times does the figure
below show rotational symmetry?
4 times
How many grams is 3 centigrams?
0.03 grams
Does the equation below represent a
direct proportion?
4x +2 = y
No – it is not in the form y = kx
How many vertices are on the solid
figure shown below?
8
Calculate!
A bag of marbles contains 7 red, 12 orange, 3
blue and 6 multi-colored marbles. What is the
probability of picking out a marble that isn’t
orange?
3
A.
7
19
C.
28
4
B.
7
3
D.
4
What is the probability of rolling
number greater than 2 on a standard
die ?
2:3
There are 4 numbers > 2(3,4, 5 ,6) and 6 possible outcomes.
4:6 simplifies to 2:3
In the histogram below, in which interval
did approximately 50 employees fall?
0-10 or 0-$10,000
Suzy and Joe run around a circular track. They
start at the same time. Suzy takes 9 minutes
to run the entire track. Joe takes 15 minutes
to run the entire loop. They want to know
how many minutes it will be before they are
at the same place and time.
Should they find the GCF or LCM of the
2 numbers?
LCM
What does SOAR stand for?
(same – opposite – and reciprocal)
Calculate
Jennifer went to the store and spent $6.00
on school supplies and received $4.00
back in change. How much money did
she take to the store? Which equation
would represent the problem?
A. n-6=4
B. 4+n=6
C. n=6-4
D. n+6=4
What is 10% of 50?
5
What is
3
3 ?
3 x 3 x 3 = 27
What is the ANGLE of ROTATION in the
shape below?
180 degrees ( 360/2 = 180)
The space between each line on this
ruler represents what measurement?
1/8 of an inch
Calculate!
Solve the expression
75 ÷ 3 – 8 x 2
A. 4
B. 9
C. 19
D. 34
What is the constant of proportionality
in the equation below?
½x = y
½
What is the formula for
volume of a rectangular
pyramid?
lxwxh/3
What is the probability of rolling a
number < 7 on a standard die?
1
There is a 6:6 chance of rolling a 1-6.
How many people in the room
are in their thirties?
Ages of people in the room
0- There are no leaves (no data) in the 3 stem.
Calculate!
One rope is 3 ¾ yards and another is 6.8
yards long. What is their combined length?
A.
B.
C.
D.
9.55 yd.
10.55 yd.
25.5 yd.
10.1 yd.
How many factors does 24 have?
8. (1, 2, 3, 4, 6, 8, 12, 24 )
½•¼ =?
1/8
Write 55% as a decimal.
0.55
In which of the following equations is
the solution 2?
A.
B.
C.
D.
3x = 10
x–2=3
7 + x = 11
20/x = 10
Calculate!
In a model, a 10.5 ft. car
is represented by a
scale model 4 in. long.
If the same scale is
used, how long would
the scale model be for
a 15 foot truck?
A. 5 .333…in.
B. .380 in.
C. 10in
D. 12in
How many LINES of SYMMTERY does
the figure below have?
Three
How many ounces in 10 cups?
oz 8
x
=
c 1 10
80 cups
Sue pays $26 for tickets for herself and
4 of her friends. Which of the
following equations could be used to
find the cost of each ticket?
A.
B.
C.
D.
26 + x =4
26 • 4 = x
20 – 4 = x
5x = 26
The net of what solid figure is shown
below?
rectangular pyramid
All the letters of the alphabet
are placed in a bag.
What is the P(picking a consonant)?
21:26
.
How much aluminum is required to make
the can if the diameter is 4 inches and
the height is 6 inches?
100.48 in2
Which graph would be most
appropriate for displaying
categorical data?
A. bar graph
B. circle graph
C. line graph
D. box & whisker plot
Find the LCM of 8 and 6.
24
Jack has 1/3 of a pizza. Jill has ½ of a
pizza. How much pizza do they have?
5/6 of a pizza
Which rational number below has the
greatest value?
A.
B.
C.
D.
0.6
2/3
61%
0.2222….
Are the ratios below proportional?
3 x 10 = 30
5 x 5 = 25
3
5
5
10
No, they are not
equivalent.
What is the formula to calculate
the angle of rotation?
360/order
How many ounces in a cup?
8 ounces
The total cost of biscuits is directly
proportional to the number of biscuits
purchased. If chicken biscuits are
$2.50 each, write an equation to
represent the situation.
y =$2.50x
Surface Area or Volume?
How much cardboard needed to make
a box…
surface area
What is the probability of rolling a
prime number on a standard die?
1:2 – 2, 3 and 5 are the only prime numbers
so the probability is 3:6, simplified to 1:2.
What graph would be best to show
change over time data?
line graph
What is the prime factorization of
22?
2 x 11
What is the reciprocal of 1/4?
4
Which rational number below has the
least value?
A.
B.
C.
D.
0.25
1/5
9%
0.8
What is the inverse
operation for addition?
subtraction
Does the word below have
rotational symmetry?
MOW
YES
Convert 3 km to mm.
1
k
2
h
dk
3
4
units
5
d
6
c
m
3,000,000
Why is the graph below not a direct
proportion?
The line does not go through the origin (0,0)
Which formula would you use to
determine how much soup would fit in
a soup can?
A.
B.
C.
D.
2 π r2 + 2 π r h
lxwxh
π r2 h
0.2222….
volume of a cylinder
Time is Up!