Basic facts T3W1

Basic Facts: (T3W1)

1. Half 2= 1
2. Double 9= 18
3. Half 40= 20
4. Half 200= 100
5. Double 100= 200
6. Half 90= 45
7. Double 10= 20
8. Double 70= 140
9. Two groups of 7=14
10. 1/2 of 40= 20
11. One group of 10= 10
12. 9 x 4= 36
13. 1/5 of 20= 4
14. 1/3 of 9= 3
15. 3 x 5= 15
16. 10 x 10= 100
17. 10 groups of 10= 100
18. 7 x 2= 14
19. Double 3= 6
20. 4 groups of 11= 44

I challenged myself and I timed my self.

WAL our Basic facts by hard.