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# SOL Mini-Challenge

By Margaret Scott,2014-06-17 23:16
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SOL Mini-Challenge

SOL Mini-Challenge Expressions and Operations

A.10, A.11

231. Which is equivalent to (2x) ?

6 A. 8x 6 B. 6x 5 C. 8x 5 D. 6x

51031542. 12xy 3xy + 21xy is equivalent to--- 5 3xy

52103 A. 4 xy + 7xy 52103 B. 4xy xy + 7xy 53104 C. 4 xy + 7xy 2334 D. 4xy xy + 7xy

3. The diameter of a barium atom is 0.0000004346 millimeters. In scientific notation it

is

-8 A. 43.46 x 10 mm 7 B. 4.346 x 10 mm -7 C. 4.346 x 10 mm -7 D. 4346.0 x 10 mm

24. 5x(3x + 4x 6) is equivalent to---

32 A. 8x + 9x 11x 2 B. 15x + 20x 30 3 C. 15x + 4x 6 32 D. 15x + 20x 30x

735. Evaluate (4.67 x 10) (3.24 x 10).

?11 A. 1.51308 x 10 21 B. 1.51308 x 10 10 C. 7.91 x 10 10 D. 15.1308 x 10

SOL Mini-Challenge continued

??

6. 648,392 in scientific notation is

3 A. 648.392 x 10 5 B. 6.48392 x 10 -5 C. 6.48392 x 10 -6 D. .648392 x 10

23227. Which is equivalent to -3xy(6xy + 10xy 2x + 8)?

532 A. -18xy + 10xy 2x + 8 534232 B. -18xy 30xy + 6xy 24xy 624222 C. -18xy 30xy + 6xy 24xy 9322 D. -18xy 30xy + 6x 24

24538. Which is equivalent to (6x)(3x)(2x) ?

21 A. 17x 21 B. 108x21 C. 144x 40D. 144x

4329. Which is equivalent to 6x + 9x 15x ?

3x

32 A. 2x + 3x 5x 32 B. 3x + 6x 12x 32 C. 6x + 9x 15x 543 D. 18x + 27x 45x

42510. Which is equivalent to (8xy) ?

2010 A. 390,625 xy 2010 B. 32,768 xy 2010 C. 40 xy97 D. 40 xy

SOL Mini-Challenge Expressions and Operations

A.11

11. The length of a rectangular classroom floor is 19 feet less than twice the width.

w

2w 19

Which expression represents the area of the classroom floor?

A. 3w 19

B. 6w 38 2 C. 2w 19w 2 D. 2w 19

12. Which expression is equivalent to (2a + 4b)(3a b) ?

F. 5a 3b 22 G. 6a 4b 22 H. 6a 10ab + 5b 22 J. 6a + 10ab 4b

13. Which expression is equivalent to (3m + 6n 5) + (2m 3n + 6) ?

A. m + 3n + 1

B. 5m + 3n + 1

C. 5m + 9n + 11

D. 6m 18n 30

14. Which expression is equivalent to (x 4)(x + 3) ?

F. -2x 1 2 G. x 12 2 H. x x 12 2 J. x + 7x 12

SOL Mini-Challengecontinued

15. Which expression is equivalent to (7x + 8y 8) (-x 3y 6z) ?

22 + 5y 2z A. 8x22 B. -7x 24y 6z 8

C. 6x + 5y + 6z 8

D. 8x + 11y + 6z 8

216. Which is equivalent to (6x 4y) ?

22 F. 36x 16y 22 G. 12x 24xy 8y 22 H. 36x 24xy + 16y 22 J. 36x 48xy + 16y

17. Which is equivalent to (x 4)(x + 4) ?

A. 2x 8 2 B. x 16 2 C. x 8x 16 2 D. x 8x +16

2218. Which is equivalent to (15x + 3x 6) (15x + 3x + 6) ?

F. -12

G. 12

H. 0 2 J. 30x + 6x

2319. Which is equivalent to (3x 4)(2x + 6x) ?

5 A. 6x 24x 53 B. 6x + 10x 24x 63 C. 6x + 3x 24x 53 D. 5x + 7x + 2

2220. Which is equivalent to (15x + 8x 9) + (3x 2x + 8) ?

2 F. 12x 10x 17 2 G. 18x + 6x 1 2 H. 18x + 10x + 17 42 J. 18x + 6x 1

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