Yan Kow Cheong is a math consultant and author, specializing in Singapore math (model & stack methods, and Sakamoto math); and recreational & adult mathematics.
If you had some $700 to spare, would you sacrificially donate it to feed the poor and the hungry rather than to splurge it on three cute black Hello Kitty figures? https://t.co/uLQWtsgr3m #Singapore#Japan#HelloKitty#collectibles#cats#priority#poverty