This compressed file includes 1 Lotto / Beat the teacher 1 slide PowerPoint and 2 PowerPoints: 1-10 and 10-20.
The 1-10 and 10-20 PowerPoints introduce the numbers on individual slides which you can drill.
There is then a slide of all the numbers. You may choose to play a game of lotto or Beat the teacher:
Beat the Teacher instructions: The teacher points to a picture and says a word. If it is the correct word the students all repeat it. If it’s the wrong word the students must stay absolutely silent. If they do, they win 1 point. If not, the teacher gets 1 point. Most points wins!
Then there are a series of slides where one of the numbers has been removed and the students have to identify the missing number.