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3 cards from this section. Quick, good the night before a test.
What is 8 mod 3?
Consider how many times 3 goes into 8.
Calculate -10 mod 5.
Think about watching -10 on the number line.
What is the result of 14 mod 5?
How many times does 5 go into 14, and what is left over?
True or False: -1 mod 5 equals 4.
Think about adjusting -1 to the range of positive numbers.
Prove that if a ≡ b mod N, then b ≡ a mod N.
Consider rearranging the congruence definition.
If you have 7 along with 17, what can you conclude about their congruence under a modulus of 5?
Calculate each one's modulus first.
6 more questions in this section. Enroll free to practise them all.
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