1. 8 ctrl+s Page 1 2. 2 Page 2 3. 1 12 3 4 5 b 1 1. 2+5=11 .. 4 . 3 . -2 D .-32. 12 . ?A. 65B. 66C. 58 D. 983. .5+6-8+9= ?A. 3+15. 15+3. 15-3 D. -3+15 4. 6 3 4 2/ 5 Page 3 4. 1 . 4 . 5 Page 4 5. 2 12 3 4 5 bb. 66 cd 1 1. 2+15=36 .. 4 . 3 . -2 D .-32. 15 . ?A. 65B. 66C. 58 D. 983. .5+6-8+9+6-8= ?A. 3+15. 15+3. 15-3 D. -3+15 4. 6 3 4 2/ 5 Page 5 6. 2 . 4 . 5 Page 6 7. 8 1 2 11 120 230 340 4 5 1 1 3 20 f Page 7 8. Page 8 9. 0 0 0 0 5 0 0 30 fPage 9 10. Page 10