MathBrush

Problem of the day

One PSLE problem, worked out

Today’s question is on its way. If it does not appear, the free problems are always open.

▶  See the working Read the question

Free all day, every step, no account. Tomorrow there is another one at this same address, so it is the one page worth keeping.

Ask your child to try it on paper first. Then go through the working together and see where the two part company — that is the step to talk about.

How it is chosen

Every day’s problem is one of the 582 solutions that passed every check — the page measured clean in a browser and the answer worked out here rather than copied. The order is fixed, so a link to this page on a given day shows the same problem to everyone. Days change at midnight, Singapore time.