Doubling
Doubling helps children practise doubling numbers up to 50 and recognising the matching addition — for example double 18 is 18 + 18 = 36. Read the short guide and look through the examples before choosing online practice or a printable worksheet.
How to solve this
- Doubling a number means adding it to itself: double 7 is 7 + 7 = 14.
- For two-digit numbers, double the tens and the ones separately, then combine: double 34 = (2×30) + (2×4) = 60 + 8 = 68.
- Check by halving your answer — you must get back the original number.
Examples
Double 18
36
24 + 24 = ?
48
Android app
Times Divide
Multiplication and division worksheets that follow what the child has already solved.
The app does not generate PDF sheets at random. It uses the child’s previous results, including offline sheets, so the next practice can focus on what still needs work.
- Generate printable PDFs from the child’s history.
- Enter solved offline sheets quickly after practice.
- The app shows each answer; you mark it correct or not.
Scan with a phone to open Google Play