Counterexamples

Which of the following is a counterexample for this conditional statement:

If a playing card from a standard deck is red, then it is a heart.

• a spade

• a diamond

• a heart

• a club

Which of the following is a counterexample for this conditional statement:

If a number is a fraction, then it can be written as a terminating decimal.

• 1

• 4/5

• 2/3

• 1/2

Tags

CCSS.7.NS.A.2D

CCSS.8.NS.A.1

Which of the following is a counterexample for this conditional statement:

If a vehicle has four wheels, then it is a truck.

• a scooter

• a car

• a bicyle

• a motorcyle

Which of the following is a counterexample for this conditional statement:

If the number even, then it is not prime.

• 2

• 9

• 20

• 4

Which of the following is a counterexample for this conditional statement:

If a fraction has a numerator of 2, then the fraction can be reduced.

• 2/4

• 2/5

• 2/30

• 2/6

Which of the following is a counterexample for this conditional statement:

If the sum of two numbers is even, then those numbers are both odd.

• 3 and 6

• 6 and 5

• 4 and 2

• 3 and 5

Which of the following is a counterexample for this conditional statement:

If a pet is small, then it is a kitten.

• a pony

• a frog

• a kitten

• a golden retriever

Which of the following is a counterexample for this conditional statement:

If something has hands, then it is a person.

• a snake

• a screwdriver

• a doll

• a book

Tags

CCSS.L.2.1F

CCSS.L.8.1C

CCSS.L.8.3A

Which of the following is a counterexample for this conditional statement:

If an object has a blade, then it is a kitchen knife.

• a kitchen knife

• a ball

• a book

• a saw

Tags

CCSS.L.2.1F

CCSS.L.8.1C

CCSS.L.8.3A

Which of the following is a counterexample for this conditional statement:

If a food is round, then it is a pizza.

• a sandwich

• a piece of celery

• a cookie

• a banana