CRCTMath 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 jacket costs $72 plus

8% sales tax. What is

the total cost of the

jacket?

A. $5.76

B. $9.00

C. $77.76

D. $81.00

Write 1/4 as a percent.

25%

x + 2 = 5Expression 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 __ to __.0 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 6.0

Write this equation:The product of 4 and a number is

22.

4x = 22Any variable is correct.)

Calculate!

Jon has of a dollar, Pasha has $0.65, Marie

has of a dollar, and Karen has $0.62. Who

has the smallest amount of money?

3

5

7

10

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?

No – it is not in the form y = kx

4x +2 = y

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?

A. B.

C. D.

3

719

28

4

73

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 33 ?

3 x 3 x 3 = 27

What is the ANGLE of ROTATION in the shape below?

180 degrees ( 360/2 = 180)

1/8 of an inch

The space between each line on this ruler represents what measurement?

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?

½

½x = y

What is the formula for volume of a rectangular pyramid?

l x w x h / 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?

0- There are no leaves (no data) in the 3 stem.

Ages of people in the room

Calculate!

One rope is 3 ¾ yards and another is 6.8 yards long. What is their combined length?

A. 9.55 yd.

B. 10.55 yd.

C. 25.5 yd.

D. 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. 3x = 10B. x – 2 = 3C. 7 + x = 11D. 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?

80 cups

10=

1

8 x

c

oz

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. 26 + x =4B. 26 • 4 = xC. 20 – 4 = xD. 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

.

100.48 in2

How much aluminum is required to make the can if the diameter is 4 inches and

the height is 6 inches?

Which graph would be most appropriate for displaying categorical data?

A. bar graphB. circle graphC. line graphD. 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. 0.6B. 2/3C. 61%D. 0.2222….

Are the ratios below proportional?

No, they are not equivalent.

5

3

10

55 x 5 = 25

3 x 10 = 30

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. 0.25B. 1/5C. 9%D. 0.8

What is the inverse operation for addition?

subtraction

Does the word below have rotational symmetry?

YES

M O W

Convert 3 km to mm.

6

k

hdk

units

d

cm

12

34

5

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. 2 π r2 + 2 π r hB. l x w x hC. π r2 hD. 0.2222….

volume of a cylinder

Time is Up!