Core Mathematics

Question 1

1Every number in modulo 7 is one of 0, 1, 2, 3, 4, 5, 6.

Easy

A. True B. False

Question 2

240 (mod 9) = ___

Easy

Your answer (fill in the blank)

Question 3

3In modulo 4, 2 has a multiplicative inverse.

Hard

A. True B. False

Question 4

4Modulo 7 can be used for days of the week.

Easy

A. True B. False

Question 5

5Evaluate 19 + 16 (mod 8).

Easy

A. 3 B. 2 C. 4 D. 35

Question 6

6Evaluate 9 + 15 (mod 8).

Easy

A. 3 B. 0 C. 24 D. 1

Question 7

7Evaluate 8 + 19 (mod 4).

Easy

A. 27 B. 3 C. 6 D. 4

Question 8

8The multiplicative inverse of 3 in modulo 5 is

Hard

A. 2 B. 3 C. 1 D. 4

Question 9

9Evaluate 6 × 9 (mod 9).

Medium

A. 6 B. 1 C. −1 D. 0

Question 10

1026 (mod 9) = ___

Easy

Your answer (fill in the blank)