Take a look at this poster, full of doubles facts from the real world:
Play these games to check you know your doubles:
- Doubles Archery 2
- Hit the Button, click on doubles. Aim for 30 correct answers with 100% accuracy.
- Hit the Button, click on doubles. Aim for 30 correct answers with 100% accuracy.
Near Doubles
You can also use near doubles for speed and use your doubles for extra help: e.g. 5 + 6 = 5 + 5 + 1 Play this game to learn your near doubles: Dinosaur (near) doubles.
Reverse Doubles
Now practice your Reverse Doubles: these help heaps with subtraction!E.g. 6 + 6 = 12
So 12 - 6 = ?
That's right:
12 - 6 = 6.
5 + 5 = 10.
10 - 5 = ?
7 + 7 = 14
14 - 7 = ?
9 + 9 = 18
18 - 9 = ?
No comments:
Post a Comment