Numbo the maths kitten
A cheerful teal kitten with bright eyes, a warm orange scarf, and a plus-sign medallion.
Maths with Numbo
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Types of Sets and Subsets
4
questions
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Choose the best answer
1
What symbol represents the empty set?
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A
∅
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B
∞
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2
What type of set is the set of natural numbers?
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A
Infinite set
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B
Finite set
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3
If A = {1,2} and B = {1,2,3,4}, is A a subset of B?
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A
Yes (A ⊆ B)
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B
No
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4
When is A a subset of B?
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A
When every member of A is also in B
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B
When A and B have the same number of members
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