Math Puzzles/Riddles

Suppose you have three ostriches on your farm laying three eggs in three minutes.

How many ostriches do you need to produce 700 eggs in 700 minutes?

• None

• 7

• 3

• 700

Tags

CCSS.6.RP.A.3B

When Jake was 8 years old, his little brother, Shawn, was half his age.

If Jake is 20 years old today, how old is Shawn?

• 4

• 8

• 10

• 16

Tags

CCSS.6.RP.A.3B

Jack goes to the supermarket and buys 10 potatoes.

Unfortunately, on the way back home, all but 9 get ruined.

How many potatoes are left in a good condition?

• 1

• 9

• 10

• none

Tags

CCSS.2.OA.A.1

Once upon a time, there were 5 children living in the same house near the countryside. The age difference between them was 3 years.  If the youngest child was 3 years old, what was the age of the 3rd child?

• 6

• 12

• 9

• 15

Tags

CCSS.5.OA.B.3

Jill has 3 sons and each of them have a sister. How many kids does Jill have?

• 3

• 9

• 6

• 4

Tags

CCSS.8.EE.A.4

If eggs are $0.12 a dozen, how many eggs can you get for a dollar?

• 12

• 100

• 120

• 10

Tags

CCSS.6.RP.A.3B

How many sides does a circle have?

• none

• 2

• 4

• 7

Tags

CCSS.2.G.A.1

CCSS.1.G.A.1

If two’s company and three’s a crowd, what are four and five?

• 9

• 7

• too much

• 45

Tags

CCSS.1.OA.A.1

If it took 6 people 9 hours to build a barn, how long would it take 12 people to build the same barn?

• 9

• 18

• 12

• none

Tags

CCSS.6.RP.A.3B

How many total square are there?

• 9

• 10

• 12

• 14

Tags

CCSS.3.G.A.2