Modular arithmetic

Question 1 of 10

34 (mod 9) = ___

Question 2 of 10

Evaluate 6 × 9 (mod 9).

Question 3 of 10

(a) Construct the multiplication table for modulo 7. (b) Use it to find the multiplicative inverse of 3. (c) Solve 3x ≡ 1 (mod 7).

Question 4 of 10

Evaluate 19 + 6 (mod 5).

Question 5 of 10

25 ≡ 1 (mod 12).

Question 6 of 10

40 (mod 9) = ___

Question 7 of 10

Evaluate 13 × 10 (mod 6).

Question 8 of 10

Evaluate 13 × 11 (mod 9).

Question 9 of 10

(a) Construct the multiplication table for modulo 7. (b) Use it to find the multiplicative inverse of 2. (c) Solve 2x ≡ 1 (mod 7).

Question 10 of 10

The multiplicative inverse of 3 in modulo 5 is