E6~E8 Math Competition

How many different four-digit numbers can be formed be rearranging the four digits in 2004?

• 4

• 6

• 8

• 10

What is the degree measure of the smaller angle formed by the hands of a clock at 10 o'clock

• 30

• 45

• 60

• 75

Tags

CCSS.4.MD.C.5B

CCSS.HSG.CO.A.1

Suppose m and n are positive odd integers. Which of the following must also be an odd integer?

• m+3n

• 3m-n

• 3mn

Three A's, three B's, and three C's are placed in the nine space so that each row and column contain one of each letter. If A is placed in the upper left corner, how many arrangements are possible?

• 2

• 3

• 4

• 5

Of the 500 balls in a large bag, 80% are red and the rest are blue. How many of the red balls must be removed from the bag so that 75% of the remaining balls are red?

• 50

• 75

• 100

• 150

Tags

CCSS.6.RP.A.3C

Each of the 39 students in the Eigth grade at the school has one dog or one cat or both a dog and a cat. 20 students have a dog and 26 students have a cat. How many students have both a dog and a cat

• 7

• 13

• 19

• 39

In a mathematics contest with ten problems, a student gains 5 points for a correct answer and loses 2 points for an incorrect answer. If Olivia answered every problem and her score was 29, how many correct answers did she have?

• 5

• 6

• 7

• 8

Tags

CCSS.8.EE.C.7B

The year 2002 is a palindrome (a number that reads the same from left to right as it does from right to left). What is the product of the digits of the next year after 2002 that is a palindrome?

• 4

• 9

• 16

• 25

Tags

CCSS.4.OA.C.5

A rectangular garden 60 feet long and 20 feet wide is enclosed by a fence. To make the garden larger, while using the same fence, its shape is changed to a square. By how many square feet does this enlarge the garden?

• 100

• 200

• 300

• 400

Tags

CCSS.3.MD.D.8

Joe had walked half way from home to school when he realized he was late. He ran the rest of the way to school. He ran 3 times as fast as he walked. Joe took 6 minutes to walk half way to school. How many minutes did it take Joe to get from home to school?

• 7

• 7.5

• 8

• 8.5

Tags

CCSS.7.EE.B.3