Winter 2010 Math 111
Test 3
Name: ________________
Show all necessary work NEATLY, SYSTEMATICALLY, and CLEARLY. 112 points are available.
A. Basic: 3-point each
1. Compute: 269.8 – 291.01 + 19. Show work horizontally.
2. Compute:
a. 45.837  1000
b. 45.837  0.0001
c. 45.837  0.00001
363
3. Convert to decimal:
12
9
4. Convert to decimal: 7
40
5. Convert to simplified mixed number: 523.15
6. Simplify: 2.5x  7  2.3  5.2x
7. Simplify: 73.6x  6.2  x
8. Compute: 1.2 2  2.12
9. Solve: 0.3x  2.67
10. Solve: 3.5  x  5
B. Intermediate: 4-point each
11. Divide 2.849 by 0.23 and round the quotient to the nearest hundredth.
12. Tom had $4000 in his checking account last month. Since then he had written 3 checks in the
amount of $578.93, $2750.52, and $329.81. Compute:
a. The total amount of checks he wrote this month.
b. The remaining balance of his checking account after those checks being cleared.
13. Write the ratio of 2.5 to 3.15 as a fraction in simplest form.
14. At a conference, 225 women and 125 men were present. Find the ratio of women to the total
number of people present.
15. Charlie can assemble 250 panels in 8 hours, while Daniel can assemble 402 panels in 12 hours.
a. Find the unit rate of Charlie.
b. Find the unit rate of Daniel
C. Advanced: 5-point each
16. Solve: 1.3x  89.4  0.4x  18.6
17. Solve: 6 x  3.4  2( x  5.7)
18. Compute: 9  0.3  0.1  4  2.5  0.4
19. Simplify: 1.3 3.6x  6.8  2.71.3x  4.2
20. Simplify: 3.2 x 2  28.3x  16.9  7.2 x 2  13.5  39.2
3
5
21. Write the ratio of 8 to 2 as a fraction in simplest form.
4
8

D. Mind-Blowing: 6-point each
 

22. Compute: 32.74  2.32  (8.6  15.2)
23. Compute: 2.6  11.8  0.4  8.6
24. Solve: 1.3x  7.2  0.4x  8.6  2.14
25. Solve: 31.2x  8.7  2.7  22.75x  1.8  x
2