[api_or_ipa]

you wrote 9 * 7 then proceeded to calculate 9 * 8. I find the 9s easy to remember. simply take the other number, reduce it by 1, then add the complementary that together sum to 9. for 9 * 7, this is 63,

[raverbashing]

Ouch, true

Yeah, I know this trick for multiplying by 9, but I wanted it to be generic