Are You Smarter Than an 8 th Grade Math Student?

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Are You Smarter Than an 8th Grade Math

Student?

Are You Smarter Than an 8th Grade Math

Student?

Are You Smarter Than an 8th Grade Math Student?

Are You Smarter Than an 8th Grade Math Student?

1,000,000

Measurement #1Measurement #1 Measurement #2

Probability & Statistics #1Probability & Statistics #1 Probability & Statistics #2

Geometry & Spatial #1Geometry & Spatial #1 Geometry & Spatial #2

Patterns & Algebra #1Patterns & Algebra #1 Patterns & Algebra #2

Numbers & Operations #1Numbers & Operations #1 Number & Operations #2

500,000

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175,000

100,000

50,000

25,000

10,000

5,000

2,000

1,000

A cell-phone tower that has a transmissionrange of 50 miles is located 40 miles due southof a straight road. Find x, the length of the

section of road that is within the transmission range of the tower.

A 10 miB 30 miC 60 miD 90 mi

A cell-phone tower that has a transmissionrange of 50 miles is located 40 miles due southof a straight road. Find x, the length of the

section of road that is within the transmission range of the tower.

A 10 miB 30 miC 60 miD 90 mi

Measurement #1 Question Measurement #1 Question

Measurement #1 Answer Measurement #1 Answer

CC

30

900

25001600

5040

2

2

222

222

b

b

b

b

cba 30 is half the distance. The total transmission range is 60 miles.

miles603030

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Measurement #2 QuestionMeasurement #2 QuestionTo the nearest square inch, what is the area

of pavement with which the surface of the roller will come into contact in

one complete rotation?

A 753 in2

B 1,507 in2

C 1,708 in2

D 1,909 in2

To the nearest square inch, what is the area of pavement with which the surface of the roller will come into contact in

one complete rotation?

A 753 in2

B 1,507 in2

C 1,708 in2

D 1,909 in2

Measurement #2 AnswerMeasurement #2 Answer

BLateral SurfaceArea

BLateral SurfaceArea

2507,1

)240)(28.6(

)30)(8)(14.3)(2(

2

inS

S

S

rhS

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Probability & Statistics #1 QuestionProbability & Statistics #1 QuestionThe results of a random survey showed that42 out of 80 people plan to vote for Mr. Vu forcity council. Which is the best prediction of thetotal number of votes he will receive if 2,000people vote?

F 25 H 120

G 50 J 1,000

The results of a random survey showed that42 out of 80 people plan to vote for Mr. Vu forcity council. Which is the best prediction of thetotal number of votes he will receive if 2,000people vote?

F 25 H 120

G 50 J 1,000

Probability & Statistics #1 Answer

Probability & Statistics #1 Answer

J = 1,000J = 1,000 half80

42

10002

12000

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Probability & Statistics #2 QuestionProbability & Statistics #2 QuestionWhich description best represents therelationship of the dentist’s data?

F Negative trendG No trendH Positive trendJ Cannot be determined

Which description best represents therelationship of the dentist’s data?

F Negative trendG No trendH Positive trendJ Cannot be determined

Probability & Statistics #2 Answer

Probability & Statistics #2 Answer

F = Negative TrendThe # of cavities decrease as the patient gets older.

F = Negative TrendThe # of cavities decrease as the patient gets older.

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Geometry & Spatial #1 QuestionGeometry & Spatial #1 QuestionQuadrilateral PQRS was dilated to formquadrilateral WXYZ. Which number

best represents the scale factor used to change quadrilateral PQRS

into quadrilateral WXYZ?A B

C D

Quadrilateral PQRS was dilated to formquadrilateral WXYZ. Which number

best represents the scale factor used to change quadrilateral PQRS

into quadrilateral WXYZ?A B

C D

4

1

2

1

2 4

Geometry & Spatial #1 Answer

Geometry & Spatial #1 Answer

C = double

Enlargement: scale factor > 1.

C = double

Enlargement: scale factor > 1.

)2,4(

)21,22('

)1,2(

X

Q

Q

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Geometry & Spatial #2 QuestionGeometry & Spatial #2 QuestionWhich drawing shows a 3-D view of the solid figure represented?

Which drawing shows a 3-D view of the solid figure represented?

A B

C D

Geometry & Spatial #2 Answer

Geometry & Spatial #2 Answer

A: matches both views B: extra cube sticking up C: extra cube sticking out on

bottom D: Missing one cube on the top

A: matches both views B: extra cube sticking up C: extra cube sticking out on

bottom D: Missing one cube on the top

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Patterns & Algebra #1 QuestionPatterns & Algebra #1 QuestionMr. Park’s total monthly charge for local and long-

distance telephone service, c, can be found using the equation c = 20 + 0.07m, where m represents the number of minutes of long-distance calls Mr. Park made during that month. Find the total charge for a month during which Mr. Park made 100 minutes of long-distance calls.

F $7.00G $20.00H $20.07J $27.00

Mr. Park’s total monthly charge for local and long-distance telephone service, c, can be found using the equation c = 20 + 0.07m, where m represents the number of minutes of long-distance calls Mr. Park made during that month. Find the total charge for a month during which Mr. Park made 100 minutes of long-distance calls.

F $7.00G $20.00H $20.07J $27.00

Patterns & Algebra #1 Answer

Patterns & Algebra #1 Answer

J = $27.00J = $27.00

27

720

)100(07.20

07.20

C

C

C

mC

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Patterns & Algebra #2 QuestionPatterns & Algebra #2 QuestionVanita can read an average of 18 pages

duringa 30-minute reading period at school. At thisrate, approximately how long will it take herto read a 380-page book?

A 11 hB 21 hC 23 hD 42 h

Vanita can read an average of 18 pages during

a 30-minute reading period at school. At thisrate, approximately how long will it take herto read a 380-page book?

A 11 hB 21 hC 23 hD 42 h

Patterns & Algebra #2 Answer

Patterns & Algebra #2 AnswerA = 11hr A = 11hr

min630

380

21min30

2118min

380

min30

18

pgpgx

pgpg

hrs

hrs

115.10

5.10min60

min630

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Numbers & Operations #1 QuestionNumbers & Operations #1 QuestionThe area of a square is 125 square meters.Which best represents the length of a side ofthe square?

F 10.8 mG 11.2 mH 11.9 mJ 12 m

The area of a square is 125 square meters.Which best represents the length of a side ofthe square?

F 10.8 mG 11.2 mH 11.9 mJ 12 m

Numbers & Operations #1 Answer

Numbers & Operations #1 Answer

G = 11.2mG = 11.2m

2.11125

1212511

144125121

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Numbers & Operations #2 Question

Numbers & Operations #2 QuestionMs. Gonzalez’s monthly electricity bills for March

through June were $97.09, $103.96, $114.73, and $121.82. She estimated that the electricity cost a total of $400.00 over these 4 months. Which best describes her estimate?

A Less than the actual amount because she rounded to the nearest $100

B Less than the actual amount because she rounded to the nearest $10

C More than the actual amount because she rounded to the nearest $100

D More than the actual amount because she rounded to the nearest $10

Ms. Gonzalez’s monthly electricity bills for March through June were $97.09, $103.96, $114.73, and $121.82. She estimated that the electricity cost a total of $400.00 over these 4 months. Which best describes her estimate?

A Less than the actual amount because she rounded to the nearest $100

B Less than the actual amount because she rounded to the nearest $10

C More than the actual amount because she rounded to the nearest $100

D More than the actual amount because she rounded to the nearest $10

Numbers & Operations #2 Answer

Numbers & Operations #2 Answer

A = Less than the actual amount

because she rounded to the nearest

$100

A = Less than the actual amount

because she rounded to the nearest

$100

best430$

12082.121

11073.114

10096.103

10097

hers400$

10082.121

10073.114

10096.103

10097

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Million Dollar Question

Measurement

Million Dollar Question

Measurement

1,000,000 Question1,000,000 Question∆EFG is similar to ∆HJK.

Find the length of JK.A 3 unitsB 7 unitsC 14 unitsD 24.5 units

∆EFG is similar to ∆HJK.

Find the length of JK.A 3 unitsB 7 unitsC 14 unitsD 24.5 units

1,000,000 Answer 1,000,000 Answer

B = 7 unitsB = 7 units

x

x

5.3

31

21

31

5.10

5.3

21

5.10

73

21

3

1

1

21

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