✂️ Paper strips
The concrete stage costs nothing and works with the screen off. Print this page, or draw each strip with a ruler: 2 cm for every square. Cut along the lines, lay the pieces end to end, and put a coin on the piece the story asks about.
Ana finds 8 shells in the morning and 5 shells after lunch. How many shells does she find in all?
Ben has 9 stickers. He gets some more. Now he has 14. How many more did he get?
There are 12 birds on a fence. 7 are red and the rest are blue. How many are blue?
Lin reads 6 pages, then 6 more pages, then 4 pages. How many pages does she read in all?
Some cubes are in a box. Kai puts in 8 more. Now there are 17. How many were in the box at first?
A bag holds 20 apples. 11 are green. How many are not green?
Mo walks 5 steps, then 9 steps more. Then 3 more. How many steps in all?
Rosa needs 16 beads for a bracelet. She has 10. She needs some more. How many more beads does she need?