Arithmetic, Numbers
08-December-2024 Sunday
12 Divisors in Nastya and Dasha's Lists
06-December-2024 Friday
Conditional magic square with equal remainders
23-November-2024 Saturday
Powers of the number 12 in the center of the intrigue of Nastya and Dasha
13-November-2024 Wednesday
What's unusual about the number 187?
31-October-2024 Thursday
Riddle of the day: number 21 from four numbers
19-August-2024 Monday
Simple, but not stupid: Who is next to whom?
22-June-2024 Saturday
How interesting is this mathematical fact?
25-January-2022 Tuesday
What number should be in place of the question mark?
16-September-2020 Wednesday
Secret Internet for robots
22-July-2020 Wednesday
Tell me something I don't know!
12-February-2020 Wednesday
Arithmetic
14-June-2019 Friday
Banking (accounting) rounding of numbers....
10-September-2017 Sunday
Arithmetic on Peekaboo
07-June-2016 Tuesday
We multiply by 11!
13-June-2015 Saturday
Number designations.
31-March-2015 Tuesday
Money.
28-May-2014 Wednesday
Simple arithmetic :)
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