Idiot\'s Guides Basic Math and Pre-Algebra

Check Point Answers 297

26. 4,578 z 42 = 109


27. 3,496 z 19 = 184


28. 16,617 z 29 = 573


29. 681 z 14 = 48, remainder 9


30. 1,951 z 35 = 55, remainder 26

Chapter 3

1. 9 – 4 v 2 = 9  8 = 1


2. 3^2 – 2 v 4 + 1 = 9 – 8 + 1 = 2


3. (2^3 – 5) v 2 + 14 z 7 – (5 + 1)
   = (8 – 5) v 2 + 14 z 7 – (5 + 1)
   = 3 v 2 + 14 z 7 – 6
   = 6 + 2 – 6
   = 2


4. [(2^3 – 5) v 2 + 14] z 5 – 3 + 1
   = [(8 – 5) v 2 + 14] z 5 – 3 + 1
   = [3 v 2 + 14] z 5 – 3 + 1
   = [6 + 14] z 5 – 3 + 1
   = 20 z 5 – 3 + 1
   = 4 – 3 + 1
   = 1 + 1
   = 2


5. [(32 – 2 v 4) + 1]2 + [11 – 8 + 5(3 + 1)]
   = [(32 – 8) + 1]2 + [11 – 8 + 5(4)]
   = [(24) + 1]2 + [11 – 8 + 20]
   = [25]2 + [3 + 20]
   = 50 + 23 = 73


6. 2(35 + 14) = 70 + 28 = 98


7. 3(20 + 8) = 60 + 24 = 84


8. 7(100 – 2) = 700 – 14 = 686


9. 15(40 – 14) = 600 – 15 v 14 =
   600 – (150 + 60) = 600 – 210 = 390

Chapter 2

1. 48 + 86 = 134

2. 97 + 125 = 222

3. 638 + 842 = 1,480

4. 1,458 + 2,993 = 4,451

5. 12,477 + 8,394 = 29,871

6. 18 + 32 + 97 = 147

7. 91 + 74 + 139 = 304

8. 158 + 482 + 327 + 53 = 1,020

9. 71,864 + 34,745 + 9,326 = 115,935

10. 9,865 + 7,671 + 8,328 + 1,245 + 3,439 =

30,548

11. 596 – 312 = 284

12. 874 – 598 = 276

13. 1,058 – 897 = 161

14. 5,403 – 3,781 = 1,622

15. 14,672 – 5,839 = 8,833

16. 100 – 62 = 38

17. 250 – 183 = 67

18. 500 – 29 = 471

19. 400 – 285 = 115

20. 850 – 319 = 531

21. 462 v 53 = 24,486


22. 833 v 172 = 143,276


23. 1,005 v 53 = 53,265


24. 1,841 v 947 = 1,743,427


25. 2,864 v 563 = 1,612,432