4th Grade Math EOG Challenge

Farmer Brown has 12 white chickens and 6 times as many brown chickens. How many chickens does Farmer Brown have altogether?

Answer explanation

Times is a clue word for multiply while altogether shows to add.

Tags

CCSS.4.OA.A.2

Which of the lists shows only composite numbers?

• 1, 2, 8, 15, 32

• 2, 48, 16, 25, 28

• 6, 42, 49, 9, 39

• 32, 21, 44, 41, 12

Answer explanation

Prime numbers are numbers with only two factos (1 x itself). Composite numbers have more than two factors.

Always test the rules of divisibility for the factors of 3- add the digits in the number, if the sum is a multiple of 3 than the whole number is a multiple of 3 (ex: 39 = 3+9 which is 12, which is a multiple of 3x4)

Tags

CCSS.4.OA.B.4

Corey plans to allow ¹/₅ hour for completing each stage of a project. His plan will allow him to complete the entire project in 1 ³/₅ hours. Which expression represents the total amount of time it will take Corey to

complete the project?

• 2 x ¹/₅

• 5 x ¹/₅

• 8 x ¹/₅

• 13 x ¹/₅

Answer explanation

Remember when multiplying fraction put the whole number over 1 then multiply across.

When your answer is an improper fraction, divide the numerator by the denominator.

Tags

CCSS.4.NF.B.4A

CCSS.4.NF.B.4B

Sam and Anna each had $50. Sam decided to save ¹/₅ of his money. Anna saved ³/₅ of her money. How much more money did Anna save?

• $10

• $15

• $20

• $25

Answer explanation

A fraction OF a whole number shows to multiply to find your answer.

Tags

CCSS.7.NS.A.3

Choose all that are true:

• 1/2 > 2/3

• 2/3 > 3/4

• 3/4 > 2/3

• 2/3 > 1/2

• 3/4 = 1/2

Answer explanation

Try using butterfly method to quickly compare fractions.

Tags

CCSS.4.NF.A.2

Mrs. Jones wrote the number 53,125 on the board.  Mary wrote a number using the same digits. The 2 in Mary’s number represents ten times the 2 in Mrs. Jones’ number.  What could Mary’s number be?

• 23,145

• 52,135

• 53,152

• 53,215

Tags

CCSS.5.NBT.A.2

Mrs. Gerhard wants to build a play area in her backyard. If she plants grass around the play area, how many square feet of grass will she need?

• 12 square feet

• 72 square feet

• 60 square feet

• 84 square feet

Answer explanation

Find the area of both squares (L x W = A)

Then subtract the smaller square from the larger square.

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

The playoffs football game began at 2:36. By the time it was over, it was already 6:17. How much time

passed between when the game began and when it ended?

• 3 hours 41 minutes

• 4 hours 19 minutes

• 3 hours 19 minutes

• 4 hours 41 minutes

Answer explanation

Make a number line. Jump your "hours" first and then your minutes for a total amount of time.

Tags

CCSS.3.MD.A.1

Terry looked at the clock and it read 9:25. What type of angle did the hour and minute hands make?

• acute angle

• obtuse angle

• right angle

• straight angle

Tags

CCSS.4.G.A.1

What number is equivalent to 35 hundreds + 63 tens + 9 ones? (Do not include commas.)

Answer explanation

Remember that your place value shows the multiply you are working with

(ex: 14 tens is the same as 14 x 10 which would be 140)

Tags

CCSS.4.NBT.A.2