Remainders Quiz
10 questions · easy to harder · Discrete Math · score and step-by-step answers
How it works
- 10 questions, about 30 minutes (a timer counts down; you can hide it). Solve it right here: no sign-up.
- 4 questions have choices. For the others you type the answer: a number like 4, −2, 7/2 or 3.5, or for example x = 4, x = 2 or x = −3, (3, 5), 2x + 1. Use ^ for powers (x^2) and sqrt for √. Any form with the same value counts (7/2 = 3.5).
- One question at a time: Back, Next, Mark for review and the question list at the bottom. A calculator is on the screen.
- At the end: your percent and grade, every question right or wrong, why a wrong choice is wrong, and its step-by-step solution. Then practise the lesson with new questions.
Your answers and results are kept in this browser only, so you can close the page and come back.
1 Question 1
Calculate 17 mod 5Type the answer.
2 Question 2
Calculate 30 mod 7Type the answer.
3 Question 3
Calculate 40 mod 8Type the answer.
4 Question 4
Calculate −7 mod 3Type the answer.
5 Question 5
Calculate −20 mod 6- A) −20
- B) −4
- C) 4
6 Question 6
Calculate (38 + 27) mod 5Type the answer.
7 Question 7
Calculate (45 − 19) mod 6- A) −2
- B) 2
- C) 45
- D) 19
8 Question 8
Calculate (55 + 66) mod 9Type the answer.
9 Question 9
Is 45 ≡ 17 (mod 7)- A) Yes
- B) No
10 Question 10
Is −4 ≡ 11 (mod 5)- A) Yes
- B) No