Assignment:
Q1. Find decimal notation for -4/25.
a. -0.16
b. -0.4
c. -0.4
d. -6.25
Q2. Find the absolute value: -/-6.8/.
a. -8.6
b. -6.8
c. 6.8
d. 8.6
Q3. Add: -6+12+(-5)+3
a. -8
b. 4
c. 14
d. 26
Q4. Add: -5/6 + 1/2
a. 4/3
b. 3/4
c. -1/3
d. -1/2
Q5. Find the opposite, or additive inverse, of 3/4.
a. -4/3
b. -3/4
c. 1/4
d. 4/3
Q6. Subtract: 3.1 - 9.6
a. -6.5
b. -5.5
c. 12.7
d. 29.76
Q7. Subtract: 4- (-11).
a. -6.5
b. -7
c. 7
d. 15
Q8. The lowest recorded temperature in Sweden is -38 C and the lowest recorded temperature in Russia is -68 C. How much higher is the low temperature in Sweden than the low temperature in Russia?
a. 30 C
b. 38 C
c. 68 C
d. 106 C
Q9. Multiply: -4/5 x (-3/8)
a. -32/15
b. -3/10
c. 3/10
d. 32/15
Q10. Find the reciprocal of -20.
a. 400
b. 20
c. 1/20
d. -1/20
Q11. Divide: -5/6 divide 7/12
a. 10/7
b. 35/72
c. -35/72
d. -10/7
Q12. Simplify: -3(12) - [5(-4) - 2^3]
a. -64
b. -24
c. -8
d. 8
Q13. Evaluate m/n, when m=10 and n=2
a. 1/5
b. 5
c. 12
d. 20
Q14. Factor: 18-3n.
a. 3(6)
b. 3(6-3n)
c. 3(6-n)
d. 6(3-n)
Q15. Solve: 9x = -63
a. -72
b. -54
c. -7
d. 7
Q16. Solve: 8t + 11 = 7t - 6
a. 66
b. 7/8
c. 1
d. -17
(this one is difficult to solve)
Q17. Solve: 0.1p + 2.1 = 4.6p - 1.9 + 0.5p
a. -1.3
b. 0.04
c. 0.8
d. 0.6875
Q18. Translate to an algebraic expression: Twenty less than some number.
a. x - 20
b. 20 - x
c. 20x
d. x + 20
Q19. The second angle of a triangle is two times as large as the first. The third angle is 10 degrees more than second angle. Find the measure of the first angle.
a. 3.6
b. 34
c. 38
d. 42.5
Q20. The perimeter of a rectangular writing pad is 28 inches. The length is 1 inch less than twice the width. Find the width.
a. 8 inches
b. 7 inches
c. 6 inches
d. 5 inches