How it works
- Choose the settings above, then how many questions: 10, 20, 30 or 40.
- Print the sheet. The answer key comes on a page of its own, so the sheet can be handed out without the answers.
- Or practise on screen. The same questions appear with a box for each answer, and every answer is marked at once when you press Check. There is no score and no clock.
- Keep the link. The address holds both the settings and the numbers, so the same link gives the same sheet again. A new sheet with new numbers is one click away.
Two levels
- Whole numbers, one step (years 1–3): 3 m = ___ cm, 2 000 g = ___ kg, 4 h = ___ min. One step is the next unit in the list: mm, cm, dm, m, km; g, hg, kg, tonne; ml, cl, dl, L; s, min, h, days.
- Decimals, up to two steps (years 4–6): 3.5 m = ___ cm, 450 ml = ___ L, 150 min = ___ h. Every question has an answer that needs at most three decimals.
Only metric units are used. Unit conversion is the same idea as place value moving a digit: see place value for that.