Due Date:

12/15/2016
Subject:

8th Grade Pre-Algebra
**Mid Term Pre-Algebra Study Guide**

1. Express 11/4 as a decimal.

2. What is the value of Write the mixed number 25 7/16 as a decimal.

3. Simplify the expression: 2a - 3 + 9b + 7 – 6a.

4. Scientists estimate that the distance from earth to the is 150,000 kilometers. What is the distance in scientific notation?

5. The value of then square root of 17 is between which two consecutive numbers?

6. The length of the Nile River is about 6,690,000,000. Write an expression that shows this length in scientific notation.

7. Express the number 90,000 in scientific notation.

8. Express the number 0.00000236 in scientific notation.

9. A diver descends in the river 68 feet. Use an integer to represent the change in the diver’s position.

10. In the past year, the number of CD shipped was 65,000 less than the previous year, Use an integer to describe the change in the number of CDs shipped.

11. Find the value of (-9.6) + 5.2.

12. Find the sum of -8.5 + (-7.6).

13. Find the value of the expression 3 – (-6).

14. Find the value of the expression -9 – (-7).

15. Find the value of the expression 12.0 – (-3.1).

16. Change 2/3 to a decimal.

17. Change 3/11 to a decimal.

18. Write the decimal equivalent to 8 4/9.

19. Find the cube root of 64.

20.What number cubed equals 1,000.

21. What two whole consecutive numbers would the square root of 845 be located between?

22. What is the square root of 225?

23. 5( 3X + 8 ) = 175

24. 6X = 8 = 38

25. 4 ( X + 3 = = 24

26. 10X +3X = 100 + 60

27.Which is greater 2 or -13? -11 or -30

28.Write 4/25 as a decimal.

29.Write 9/22 as a decimal.

30. Is 19/3 a rational number?

31. Indicate the possible names of the following numbers:

2.75, -0.452, 3.1232…., -13

32. Draw and label an example of a reflection across the Y axis, a translation,

a rotation of 90degrees. 180 degrees, 270 degrees, and 360 degrees.

32. 1/5 X 9 =

33.2/3 X 9 =

34. 1/15 X 5/6=

35. Change each fraction to a decimal:

6/9, 21/36. 56/63, 7/49, 8/24