Observed arrival · 2026-10-15
ProblemSum’s worked PSLE word problems
ProblemSum offers Singapore-style maths word problems for children, with worked solutions designed for iPhone, iPad, and Mac.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- PSLE learners practicing Singapore-style maths word problems
- Worth noticing
- The sample solution names a strategy, draws a bar model for its numbers, then checks the answer against the original problem.
Field notes
The homepage says each prompt is generated when requested, with new names and quantities rather than drawn from a fixed question bank. Its sample solution accepts equivalent answer forms such as $4.50 and 4.50; the site also says the app works offline, requires no account, and is sold as a one-time purchase. Those operating details are claims on the page, not independently tested here.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
$PaidCommerce or pricing visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
One card from the complete issue