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My Math Space

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August/28 2024: Try our new AMC 8/10 courses. Boost your rating by doing online tests

Hightlight of the week

2024/10/14 New official mock test from AOPS

2024/10/01 New problem set made by high quality contests created by wikjay, ijco, and megahertz13

2024/09/24 You can now do AMC mock tests with high quality contests created by AOPS community

2024/09/23 Video tutorial parent guide how to use the website

2024/09/23 We added 500 new questions to Math Trainer, you can practice all questions from the famouse CEMC (Waterloo, Canada) Math Contest

2024/09/14 New Math Trainer, you can practice your quest and your own practice problems

2024/09/05 New Berkeley Math tournament contests now available

2024/09/01 Start doing online contest and boost your contest rating. Congrats Sun-Joo Jang (1677), Nianhua Li (1667), Jason ZHANG (1653),

Problem of the day

On a sheet of paper, Isabella draws a circle of radius $2$ , a circle of radius $3$ , and all possible lines simultaneously tangent to both circles. Isabella notices that she has drawn exactly $k \ge 0$ lines. How many different values of $k$ are possible?

$\textbf{(A)}\ 2 \qquad\textbf{(B)}\ 3 \qquad\textbf{(C)}\ 4 \qquad\textbf{(D)}\ 5\qquad\textbf{(E)}\ 6$

Solve me

Latest update

2024/08/28 Checkout new AMC 10 Counting Mock test 1
2024/08/18 Checkout Competify test 3 contest for grade 9-12
2024/08/18 Congratulations to BoredApe, Justin Kchao for a successfully Competify contest Test 2 (leaderboard)
2024/08/13 Checkout 100 new questions in AMC 8 Number Theory
Take the brand new AMC 8 algebra test and earn reward
Earn your reward by doing quest video tutorial.
New challenge for 5-8 grade Competify challenge Set 2!!!.
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August 2024: Try our new AMC 10 courses version 2.

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Recent Answers

Congrats nobody for answering question 20, AMC_8, 2000 and performing in top 19.443% students (source MAA)
Congrats Muhammad Haroon for answering question 2, BMT_Algebra, 2022.
Congrats Muhammad Haroon for answering question 1, BMT_Algebra, 2022.
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