Mathematics, Peterson
10-March-2024 Sunday
Pathogene's answer to "Math"
05-March-2023 Sunday
Fresh prunes? I'll go and look for fresh raisins at the same time
09-May-2022 Monday
Oh, that Peterson math program...
11-October-2021 Monday
Task from the textbook for the 3rd grade
28-April-2021 Wednesday
I call on the help of the League of Mathematicians
18-November-2018 Sunday
Mathematics by Peterson
v20240901