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MODULAR ARITHMETIC QUIZ

For each question, enter your answer in the box provided then click on CHECK button to find out if you were correct. Note that * means multiply and ^ means exponentiation.
Your answer should be the least non-negative integer value.

QUESTION 1

54 +180 (mod 4)

QUESTION 2

189 +35 (mod 12)

QUESTION 3

178 *189 (mod 24)

QUESTION 4

20 *155 (mod 21)

QUESTION 5

100 ^145 (mod 25)