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Challenges

Problems worth getting stuck on

A small shelf of curious problems, gathered for every family here. Pick one, sit down together, and if it bites back, June can work through it with your child.

2 of 21 challenges ·

Grade 5

Three problems that reward a second look

A fraction sum that folds up neatly, two fractions a hair apart, and one equation to work backwards -- three chances to look for structure before reaching for arithmetic.

3 problems

Grade 7

Two numbers, two clues

Each puzzle gives two facts about hidden numbers and asks one back. The trick is the same every time: turn the clues into shares, solve the picture, then undo the twist.

3 problems