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Unit memory – match the pairs

Match 8 km with 8,000 m! Free matching game for unit conversion. Mistakes are explained on the unit ladder.

Practice unit conversion with Unit memory: match two cards that show the same quantity, for example 8 km and 8,000 m. Free, ad-free and with no login – made for ages 10-12.

This game needs JavaScript. Meanwhile, practice with the unit tables:

Unit tables

Example pairs
8 km8 000 m
2 kg2 000 g
3 l30 dl

For teachers

Pick a grade level (grade 4, 5 or 6) or customize the category and number of cards. The “Share with class” button copies a link with your settings – paste it into Google Classroom or your LMS. “Download game cards” gives the same deck as a downloadable A4 PDF with an answer key. Free to copy and share with students and colleagues (CC BY 4.0).