1. Unit 1 Review Flashcards Unit 1 Review Flashcards ALA: Pre-Algebra Unit 1 Whole Numbers

2. PUTTING IT ALL TOGETHER PRACTICING FOR THE ALA Unit 1 Exam

3. Universal Truths

4. 8 ÷ 8 1

5. 100 ÷ 100 1

6. 257 ÷ 257 1

7. Any number divided by itself = 1.

8. 8 + 0 8

9. 100 + 0 100

10. Adding zero to any number gives you the same number.

11. 8 - 8 0

12. 547 - 547 0

13. Any number minus itself always gives you zero.

14. 8  1 8

15. 933  1 933

16. Multiplying any number by 1 gives you the same number.

17. 8  0 0

18. 632  0 0

19. Multiplying any number by 0 gives you 0.

20. DON’T YOU DARE!

21. 8 ÷ 0 undefined

22. You can’t divide by 0. N ÷ 0

23. 5 x 48 × 2 480

24. 97 + 496 + 3 596

25. COMMUTATIVE PROPERTY OF ADDITION AND MULTIPLICATION You can add in any order without changing the sum. You can multiply in any order without changing the product.

26. ORDER OF OPERATIONS PLEASE EXCUSE MY DEAR AUNT SALLY

27. 4 + 5 × 3 19

28. 20 ÷ 5 × 4 16

29. (6 + 3) 2 81

30. 1 + 5(6 – 3) 2 46

31. Interview with a Number 100 Even or odd? Perfect Square? Divisible by 3? Divisible by 5? Divisible by 4? Divisible by 10? even yes no yes Prime or composite? composite

32. Interview with a Number 85 Even or odd? Perfect Square? Divisible by 3? Divisible by 5? Divisible by 4? Divisible by 10? odd no yes no Prime or composite? composite

33. Make a Factor Tree! 198 2 x 3 x 3 x 11

34. ROUND 694.827 To the nearest ten: To the nearest unit: To the nearest hundred: 690 695 700

35. WRITE THESE NUMBERS: One million Three hundred thousand One billion One bazillion One googol 1,000,000 = 10 6 300,000 1,000,000,000= 10 9 Not a number! 10 100

36. ADD, SUBTRACT, MULTIPLY, AND DIVIDE: 29 595 SUM PRODUCT DIFFERENCE QUOTIENT 624566 17255 20 r 15

37. Start with 10 DOUBLE IT: HALVE IT: SQUARE IT: 20 5 100

38. 4:23 pm What time is it in military time? 1623

39. 0927 What time is it in normal time? 9:27 am

40. 90, 80, 90, 70, 20 Mean: 70 Median: 80 Mode: 90 Calculate the Mean, Median, and Mode of these test scores:

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