Key to Test Best

Test Best Level G ---7th grade key--- partial----math

p. 58 Number relations.

1. c 2. f 3. a 4. 5 degrees C

p. 59 Number theory

1. b 2. h scientific notation can only have one digit BEFORE the decimal.
3. c 4. It is a prime number. It will have no branches if you factor it. Its only factors are itself and one. For the record, here are the first few prime numbers: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, etc, Composite numbers are COMPOSED of primes, meaning that they can be the products of two or more prime numbers. For the record, the first few composites are 4, 6, 8, 9, 10, 12, 14, etc....

p. 60 pre algebra
1. c 2. j Distributive property a(b + c) = ab + ac
3. a 4. j (and 5. 15 = 315 ( .10) = $ 46.50


p. 61 Patterns/ functions 1. d 2. Rudy can expect to make 20. 3. h 4. b

p. 62 Probability /statistics 1. b Two 6-sided cubes there are three different ways you can get results of greater than 10 so it's 3/36 or 1/12

2. Average score is the sum of the numbers divided by 12.

3. j 4. c

P. 63 continued
5. f 6. b 7. f 8. b 9. 12 shares x $65/ share = $780

p. 64 Geometry 1. a 2. 600 sq ft. e. h 4. b


p. 65 continue
5. f 6. c. reflection (a translation is just a shift) 7. j 8. d 9. radius

p. 66 measurement
1. d 3. Note that when they say length of one side of a block, they are not using the real math vocabulary. It would be length of one edge. (Side is not a word we use in solid geometry. The vocabulary is face, edge, and vertex.)
4. d

p. 67 continued
5. h 6. b 7. f 8. d 9. 6 yds x 3 ft./yd = 18 ft.
10. 45 minutes

p. 68 Problem Solving

1. d 2. 30 cars 3. g 4. 42, 44, 46, 48, 50, 52

p. 69 Estimation

1. d 2. h 3. c 4. g 5. 3,000 miles (est.)

p. 70 Test

1. b 2. g scientific notation----see note earlier---only 1 digit before decimal point
3. a 4. h 5. c 6. g 7. All are multiples of three. You might also have said that all have three as a common factor, or gcf.

8. c 9. A lot of kids got this wrong: there are five ways to total 6 when you throw 2 dice so the answer is 5/36 or j 10. 40 boards. 11. b use a proportion


12. j 13. d average you can estimate 14. f 15. c 16. f 17. narrow tip is only 35 cents per marker 18. b 19 j 20. c


p. 73

21. h 222. a 23. h 24. ac is the diameter 25. ordered pair is always x before y
or horizontal before vertical: d 26. g it's a rotation and not a translation (shift)
27. d 28. h 29 8:09 a.m. 30. not logical c 31. j 32 set up a proportion to solve: 12/16 = 3/4 He would need 12 pieces. 33. b 34. 45 35. 36 x 5 -8 h
36. c 37. I don't think this problem lists the correct answers. It would be 8 x 8. We might just write to the publishers to complain! 38. a

p. 76 Procedures.
1. e 2. g 3. a 4. f 5. b 6. j

p. 77 Computation
1. a 2. h 3. c 4. h

p. 78. Test
1. b 2. f 3. a 4. h 5. a 6. h 7. c 8. 201,201 9. h 10. c 11. f 12. d 13. h 14. $2.34

Alas, I have not done a key for test 3 which begins on p. 108. It's easy enough to check your work on that with a calculator.