Exercise 1: Calculate these:

1. 45 x 6
2. 56.7 + 67.8
3. 456 x 0.1
4. 78.9 + 4.84
5. 0.3 x 0.8
6. 4 x 76
7. 409.8 + 69.7
8. 4.5 x 0.1
9. 23.6 x 127.9
10. (0.5)2
11. 438 / 6
12. 64.6 – 28.8
13. 843 / 0.1
14. 414 – 99.7
15. 0.9 / 0.3

Exercise 2: Simplify these, and give each answer as a decimal number:

1. 4/5
2. 3/8 of 56
3. 2/9 of 8.1
4. 2/5
5. 4/7 of 49
6. 2/7 of 8.4
7. 42/5
8. 3/20
9. 23/5
10. 3/40