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1. |
When would you not want to estimate an answer? |
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A. |
when an exact answer is needed |
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B. |
when there are many calculations |
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C. |
when there are simple calculations |
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D. |
when there are large numbers |
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Hint |
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2. |
What is the value of 3s(t +11) - 6r if r = 21, s = 9, and t = 11? |
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A. |
480 |
B. |
175 |
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C. |
468 |
D. |
531 |
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Hint |
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3. |
Simplify the expression 12n + (-5n) + 3n. |
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A. |
-4n |
B. |
-20n |
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C. |
10n |
D. |
7n |
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Hint |
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4. |
Solve the equation 6 - (-8) = b. |
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A. |
-2 |
B. |
14 |
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C. |
2 |
D. |
18 |
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Hint |
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5. |
Choose a tens digit for 2?6 so that the three-digit number is divisible by 6. |
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A. |
1 |
B. |
3 |
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C. |
2 |
D. |
0 |
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Hint |
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6. |
Jason wants to buy a car. He has $2500 in his savings account. He also needs to pay $600 for insurance. Write an inequality that can be used to determine the price of a car that Jason can buy. |
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A. |
c + 600  2500 |
B. |
c + 600  2500 |
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C. |
c - 600 2500 |
D. |
c - 600 2500 |
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Hint |
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7. |
The sum of twice a number and 8 is 33. Write an equation and then solve for the number. |
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A. |
2t + 33 = 8; -12.5 |
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B. |
2t = 33; 16.5 |
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C. |
2(8) + t = 33; 17 |
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D. |
2t + 8 = 33; 12.5 |
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Hint |
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8. |
Write  as a percent. |
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A. |
72% |
B. |
0.072% |
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C. |
7.2% |
D. |
0.72% |
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Hint |
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9. |
What is the range of the relation {(-1, 5), (2.3, 8.7), (5.1, -7.2),(6, -12.5)}. |
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A. |
{-6.5, -2.1, 4, 11} |
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B. |
{-1, 2.3, 5.1, 6} |
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C. |
{-12.5, -7.2, 5, 8.7} |
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D. |
{-12.5, -7.2, -1, 2.3, 5, 5.1, 6, 8.7} |
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Hint |
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10. |
Which point represents the car engine with the best fuel economy? |
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A. |
(150, 33) |
B. |
(350, 21) |
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C. |
(75, 39) |
D. |
(275, 16) |
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Hint |
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11. |
Find 50 · (13 · 2) mentally. |
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A. |
130 |
B. |
1300 |
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C. |
1200 |
D. |
750 |
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Hint |
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12. |
Which is not a valid property? |
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A. |
Associative Property of Addition |
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B. |
Associative Property of Multiplication |
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C. |
Associative Property of Subtraction |
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D. |
All of these are valid. |
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Hint |
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13. |
Cheng-Yu has been recording data based on her age and height, which can be seen in the scatter plot shown. What relationship does the scatter plot show? |
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A. |
Negative Relationship |
B. |
Scatter Relationship |
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C. |
No Relationship |
D. |
Positive Relationship |
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Hint |
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14. |
Write the expression 5-4 using a positive exponent. |
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A. |
-54 |
B. |
54 |
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C. |
 |
D. |
 |
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Hint |
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15. |
Express 0.00186 in scientific notation. |
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A. |
1.86 × 103 |
B. |
1.86 × 10-3 |
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C. |
1.86 × 10-4 |
D. |
1.86 × 10-5 |
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Hint |
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16. |
Solve  |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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17. |
Solve  |
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A. |
x > 294 |
B. |
x > -294 |
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C. |
x < 294 |
D. |
x < -294 |
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Hint |
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18. |
A six-pack of soda costs $2.49, a 12-pack of soda costs $3.99, and a 24-pack of soda costs $5.49. Which pack has the lowest cost per unit? |
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A. |
6-pack |
B. |
24-pack |
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C. |
12-pack |
D. |
The unit rates are equal. |
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Hint |
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19. |
Find 50% of 80 mentally. |
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A. |
4 |
B. |
40 |
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C. |
160 |
D. |
20 |
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Hint |
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20. |
Suppose a number cube is rolled. What is the probability of rolling a number greater than 4? |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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