StudyChamp Blog
Number Crossword
A crossword made of sums. Three equations run across and three run down, sharing their numbers. Put the tiles in the empty cells so that every line adds up, and watch out for spare tiles.
What it trains
- Reasoning with numbers, not just calculating
- Checking a result in two directions
- Planning before placing
Questions
Is there a daily Number Crossword?
Yes. Besides this exercise, the app has a daily crossword, the same puzzle for everyone that day, so a group can compare times.
How do I answer?
Tap a tile to place it in the selected cell and tap a cell to take the tile back. From Expert, some signs are hidden too.