Down by tens, along by ones
A counter on every number a child says. The tens column is shaded, so children see why ten more is one row down and why counting by fives lands on 5 and 0.
For kindergarten to grade 2
A hundred chart the whole class can cover
Children tap a number and the chart says it. Lessons give you numbers to find, ten more and ten less, and counting on by tens, fives and twos.
Free, with no sign-up. Nothing about you or your class is kept.
Try it now. No sign-up needed.
Tap a number to cover it. Tap it again to take the counter off.
This is the real chart. The full chart and its lessons are free.
Find it, jump it, count it
A lesson is a chain of tasks: "Find 37", then "Start at 37. Show ten more", then "Count by fives from 20". Hide the numbers and the class says what is under each square.
Send it home
Every lesson has its own link. Bookmark it, open it on the board, or send it home and the same tasks come up on a phone or tablet.