Number Heads Together

Froggy Jumps

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Syinn Rhielle

Philippines

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1	Syinn Rhielle June 5, 2026	% 90	01:30

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Froggy Jumps Number Heads TogetherOnline version Create your own quiz questions by Syinn Rhielle 1 Which of the following accurately describes a null set? a A set containing the number 0 b A set with no elements at all c a set that contains a blank space 2 U = {MISSISSIPPI} A = set of all the vowels in U Question: What is the cardinality of set A? a n(A) = 4 b n(A) = 1 c n(A) = 3 3 If D = {2,4,6,8} and E = {set of all even natural numbers less than 10}, is D ⊆ E and is E ⊆ D? a YES b NO c D is a subset of E but E is not a subset of D 4 Which collection is well-defined? a The collection of three tallest students in a group. b The collection of three funniest students in a group. c The collection of three best singers in a group. 5 If a set has exactly 2 elements, how many total subsets can you find? a 2 b 3 c 4 6 What is the cardinality of the set M = {s,e,t,s}? a 3 b 4 c 2 7 The Universal set U is the set of all the days in a week. What is the cardinality of U? a 7 b 5 c 6 8 Which of the following is the correct way of writing a null set? a {∅} b {0} c ∅ 9 What is the cardinality of the set Z = {set of x, wherein x is a square with 5 sides} a n(Z) = 0 b n(Z) = 5 c n(Z) = 3 10 If set X is a subset of set Y, which statement is true? a Set X must have more elements than set Y b Set X and set Y cannot be the same set c Every element of set X is also found in set Y

Froggy Jumps

Number Heads TogetherOnline version

Create your own quiz questions

by Syinn Rhielle

Which of the following accurately describes a null set?

A set containing the number 0

A set with no elements at all

a set that contains a blank space

U = {MISSISSIPPI} A = set of all the vowels in U Question: What is the cardinality of set A?

n(A) = 4

n(A) = 1

n(A) = 3

If D = {2,4,6,8} and E = {set of all even natural numbers less than 10}, is D ⊆ E and is E ⊆ D?

YES

D is a subset of E but E is not a subset of D

Which collection is well-defined?

The collection of three tallest students in a group.

The collection of three funniest students in a group.

The collection of three best singers in a group.

If a set has exactly 2 elements, how many total subsets can you find?

What is the cardinality of the set M = {s,e,t,s}?

The Universal set U is the set of all the days in a week. What is the cardinality of U?

Which of the following is the correct way of writing a null set?

{∅}

{0}

∅

What is the cardinality of the set Z = {set of x, wherein x is a square with 5 sides}

n(Z) = 0

n(Z) = 5

n(Z) = 3

If set X is a subset of set Y, which statement is true?

Set X must have more elements than set Y

Set X and set Y cannot be the same set

Every element of set X is also found in set Y

You can integrate the game into an LMS compatible with LTI 1.1 or LTI 1.3 such as Canvas, Moodle, or Blackboard. This way, the scores will be automatically saved into the platform’s gradebook.

Number Heads Together

Froggy Jumps

About this activity

Created by

Download the paper version to play

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Froggy Jumps

Number Heads TogetherOnline version

by Syinn Rhielle

Which of the following accurately describes a null set?

U = {MISSISSIPPI} A = set of all the vowels in U Question: What is the cardinality of set A?

If D = {2,4,6,8} and E = {set of all even natural numbers less than 10}, is D ⊆ E and is E ⊆ D?

Which collection is well-defined?

If a set has exactly 2 elements, how many total subsets can you find?

What is the cardinality of the set M = {s,e,t,s}?

The Universal set U is the set of all the days in a week. What is the cardinality of U?

Which of the following is the correct way of writing a null set?

What is the cardinality of the set Z = {set of x, wherein x is a square with 5 sides}

If set X is a subset of set Y, which statement is true?

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