Same for math; day 6 was also basically 3 days cz I wanted to finish everything. I did Non-linear Functions Easy with a 40/41 (mistake: 7cb3a8ee), Nonlinear Funcs +Eqs Medium with a 56/61 (mistakes: d4950429, 735a0a00, 44076c7d, bef4b1c6, 2d2ab76b), Nonlinear Funcs + eqs (hard) with a 67/76 (i wasnt very focused for the last 2 sets) (mistakes:ba0edc30, 4dd4efcf, 271ffad7, ebb717ab, 1ce9ffcd, 158591f0, 84dd43f8, fbb96bb1, 1178f2df), Ratio, Rates, Units, Percents Easy with a 46/46, Ratio, Rates, Units, Percents Medium + Hard with a 58/59 (mistake:8213b1b3), Distributions, Center, Spread, Scatterplots Easy with a 40/40, Circles Easy + Medium + Hard with a 19/19, Area/Volume Easy + Medium + Hard with a 39/39, Angles, Triangles, Trig Easy + Medium + Hard with a 71/73 (mistakes: eeb4143c, 17912810 but for this one the answer is 101/2 or 50.5 but 50.5 was put in the correct answers as 50/5 so this isnt really a mistake from my end just wanted to point it out; a screenshot will be attached), Equivalent Eq's Easy + Medium + Hard with a 51/55 (mistakes:1e8d7183, 26eb61c1, c3b116d7, 42f8e4b4) and finally Probability, ME, Experiments Easy + Medium + Hard with a 52/60 (mistakes: affb2315, 37930b2a, 642519d7, 46b2e169(for this one no correct answer was put so i also wanted to point this out. My answer is 13/50 and i'm pretty sure I'm correct; screenshot will be attached), e29586d5, 585de39a, 7ce2830a, 5dc386fb)
Edit: I found more grid-in questions with no answers which are screenshotted below.