[☯Touhou☯］Math class with ❄Cirno❄

Cirno "Can you answer my problem?" There are nine problems in total! Let's do our best to answer quickly. If you do not answer correctly, you cannot answer the next question！ First Hint Since it's Cirno, the answer is always. . . Second Hint For those who don't understand 9th question , Let's listen to "Cirno's Perfect Math Class" and "Cirno's Perfect Math Class nine Anniversary Version". This is, An unofficial Touhou derivative work based on "Cirno's Perfect Math Class". "Cirno's Perfect Math Class" Arranged by IOSYS for "Beloved Tomboyish Girl" that appears in the PC game "Touhou Koumakyou ~ the Embodiment of Scarlet Devil." "Tohou Koumakyou" was produced by ZUN of "Shanghai Alice Genrakudan".