Basic Facts

1. Half 70 = 35
2. Double 9= 18
3. Half 40= 20
4. Half 20= 10
5. Double 100=200
6. Half 100= 50
7. Double 2= 4
8. Double 4= 8
9. Half 70= 35
10. 1/2 of 40= 20
11. Half 70= 35
12. Double 200= 400
13. 1/4 of 12= 3
14. 4 x 4= 16
15. 1/5 of 20= 4
16. 1/3 of 9= 3
17. 3 x 5= 15
18. 10 x 10= 100
19. 1/10 of 100= 10
20. 2/5 of 20= 8
21. 2/3 of 9= 6
22. 2/2 of 40=40
23. 1/8 of 64=8
24. 2/8 of 64=16
25. 2/8 of 80=20
26. Double 3=6
27. 1/2 of 2=1
28. Double 7=14
29. 1/5 of 100=20