Free Printable Review 2

1.

a)

531,441

b)

544,341

c)

81

d)

none of these

2.

a)

-2

b)

-1.6

c)

-2.16

d)

none of these

3.

a)

$3.9\ x\ 10\ ^{12}$

b)

$3.99\ x\ 10^{13}$

c)

$3.99\ x\ 10$

d)

none of these

4.

a)

$5.29\ x\ 10\ ^{-11}$

b)

$5.29\ x\ 10^{10}$

c)

$52.9\ x\ 10^{12}$

d)

none of these

5.

a)

4

b)

40

c)

400

d)

none of these

6.

a)

$13\ x\ 10\ ^{-8}$

b)

$1.3\ x\ 10\ ^{-9}$

c)

$1.3\ x\ 10\ ^{-7}$

d)

$13\ x\ 10\ ^{-7}$

7.

Type your answer in simplified scientific notation.

4 lines

8.

How would you write 4.3756 x 10⁴in standard form?

(a)

9.

How would you write 0.0005 in scientific notation?

a)

50 x 10^-5

b)

5 x 10^-4

c)

5 x 10³

d)

.5 x 10³

10.

How would you write -5.6 x 10^-3 in standard form?

(a)

11.

Scientific Notation is made up of two number parts. The second part is a power 10.

a)

True

b)

False

12.

Which of the following numbers is written in scientific notation?

a)

20.35 x 10⁴

b)

.2035 x 10⁴

c)

2035⁴

d)

2.035 x10⁴

13.

Convert to scientific notation:

520,000,000

a)

52 x 10⁷

b)

5.2 x 10^-7

c)

5.2 x 10⁸

d)

0.52 x 10⁹

14.

If the exponent is a negative number the original number was...

a)

a really large number.

b)

a really small number.

15.

$\frac{12^6}{12^4}=\ ?$

a)

12

b)

1

c)

$12^{\left(6+4\right)}\ =\ 12^{10}$

d)

$12^{\left(6\ -\ 4\right)}\ =\ 12^2$

16.

Simplify:
(x⁵)⁴

a)

x⁹

b)

x²⁰

c)

x

d)

x⁵⁴

17.

(x³y)⁶

a)

2x¹⁸y⁶

b)

x¹⁸y⁶

c)

x³y⁶

d)

x³y⁶

18.

Simplify: $\frac{x^2y^5}{x^9y^5}$

a)

$x^2$

b)

$\frac{1}{x^2}$

c)

$\frac{1}{x^7}$

d)

$x^7$

19.

How do you write
5⋅5⋅5⋅5⋅5⋅5⋅5
with an exponent?

a)

5⁷

b)

5⁶

c)

7⁵

d)

5

20.

a)

3

b)

0

c)

1

d)

1/3

21.

Simplify using the 9 Laws of Exponents:

a)

b)

c)

d)

22.

(8.1 x 10³) + (8.1 x 10³)

a)

16.2 x 10³

b)

1.62 x 10⁴

c)

1.62 x 10⁶

23.

Write the answer in scientific notation.

(5.0 x 10⁸) - (3.4 x 10⁸)=

a)

2.4 x 10⁸

b)

2.4 x 10⁰

c)

1.6 x 10⁸

24.

Add using scientific notation.

(5.2 x 10⁷) + (3.01 x 10⁴)

a)

5.20301 x 10¹¹

b)

.520301 x 10⁷

c)

5.20301 x 10⁷

25.

Write the answer in scientific notation.

9.4 x 10⁸ - 2.4 x 10⁷

a)

9.16 x 10⁸

b)

9.16 x 10⁰

c)

91.6 x 10⁰

26.

Neptune is approximately 5 x 10⁴ kilometers in diameter. Mars is approximately 7 x 10³ kilometers in diameter. How much larger is the diameter of Neptune compared to the diameter of Mars?
What operation would you use?

a)

addition

b)

subtraction

c)

multiplication

d)

division

27.

4. Find the combined mass of Earth and Venus. Earth is approximately 5.9 x 10²⁴ kg and Venus is approximately 4.9 x 10²⁴ kg.

a)

Add

b)

Subtract

c)

Multiply

d)

Divide

28.

7a. The approximate total surface area of the Earth is 5.1 x 10⁸km. Salt water has an approximate surface area of 352,000,000 km and freshwater has an approximate surface area of 9 x 10⁶ km. How much of the Earth’s surface is covered by water, including both salt and freshwater?

a)

Add

b)

Subtract

c)

Multiply

d)

Divide

29.

Add using scientific notation.

(5.2 x 10⁷) + (3.01 x 10⁴)

a)

5.20301 x 10¹¹

b)

.520301 x 10⁷

c)

5.20301 x 10⁷

30.

$\frac{8\times10^4}{4\times10^4}$

a)

$12\times10^4$

b)

$2\times20^4$

c)

$2\times10^0$

d)

$2\times10^8$

31.

(2 x 10⁹)(4 x 10⁴)

a)

8 x 10¹³

b)

8 x 10³⁵

c)

8 x 10⁵

d)

6 x 10¹³

32.

$\left(2.0\times10^5\right)\ +\ \left(2.0\times10^4\right)\ =?$

a)

$4.0\ \times\ 10^2$

b)

$2.0\ \times10^1$

c)

$2.2\times10^4$

d)

$2.2\times10^5$

33.

Multiply:

(3.4 x 10⁵)(1.2 x 10^-3)

a)

4.08 x 10^-8

b)

4.8 x 10²

c)

4.08 x 10²

d)

4.08 x 10^-15

34.

Which of the following is correct scientific notation?

a)

20.35 x 10⁴

b)

.2035 x 10⁴

c)

2035⁴

d)

2.035 x10⁴

35.

a)

Positive Association

b)

Negative Association

c)

No Association

d)

None of these

36.

a)

$1.76\ x\ 10^{15}$

b)

$17.6\ x\ 10^{14}$

c)

$1.76\ x\ 10\ ^{14}$

d)

none of these

37.

Which of these measurements has three significant digits?

a)

134 meters

b)

56.09 inches

c)

0.52 centimeters

d)

8009 miles

38.

a)

Janice's solution is correct.

b)

Juan is correct, Janice's solution is not correct. The correct solution is $3.413\ x\ 10\ ^5$

c)

Juan is correct, Janice's solution is not correct. The correct solution is 3.413

d)

none of these

39.

a)

$0.37x^2-0.55x$

b)

$0.37x\ -\ 0.65\ x^2$

c)

$0.37x^2-0.65x$

d)

none of these

40.

a)

$0.625x+x^2$

b)

$0.652x^2+x$

c)

none of these

d)

$0.625x^2+x$

41.

a)

$\frac{2}{5}x^2+\frac{3}{5}x$

b)

$-\frac{2}{5}x^2+\frac{3}{5}x$

c)

$-\frac{2}{5}x+\frac{3}{5}x^2$

d)

$\frac{2}{5}x^2-\frac{3}{5}x$

42.

a)

$4k^3\left(3k-4\right)$

b)

$4k^2\left(3k^2-16k\right)$

c)

$4\left(3k^4-4k^3\right)$

d)

none of these

43.

a)

$4m\left(8+5m^3\right)$

b)

$4m^4\left(8+5m^2\right)$

c)

none of these

d)

$4m\left(8m+5m^3\right)$

44.

a)

A

b)

B

c)

C

d)

D

45.

a)

A

b)

B

c)

C

d)

D

46.

a)

(4,2), that is the ordered pair where the two lines intersect.

b)

(3,4), that is the ordered pair where the two lines intersect.

c)

(4,3), that is the ordered pair where the two lines intersect.

d)

none of these

47.

a)

No solution. This is the solution because the lines are parallel and will never intersect.

b)

(0,0) because the point is located between the two lines.

c)

Two Solutions ( 0,4) and (0,-5) because the lines intersect at these points.

d)

None of these.

48.

a)

A

b)

B

c)

C

d)

D

49.

Manchell is spinning a spinner twice with 4 equal sections numbered 1 to 4. What are all the possible outcomes in the sample space?

a)

{1,1; 1,2; 1,3; 1,4; 2,1; 2,2; 2,3; 2,4; 3,1; 3,2; 3,3; 3,4; 4,1; 4,2; 4,3; 4,4}

b)

{1, 2, 3, 4}

c)

{1,2; 2,2; 3,3; 4,4}

d)

None of these

50.

Rob rolls a number cube and tosses a coin. What is the total number of possible outcomes?

(a)

51.

Crystal is planning her outfit. She has 3 tops (tank, short sleeve and long sleeve); 2 bottoms (capris and jeans) and 2 shoe pairs (sneakers and crocs). How many outfits can she make?

a)

12

b)

9

c)

16

d)

7

52.

If Grayson rolls a 6-sided die 200 times, what is a reasonable prediction on how many times he will roll a 4?

a)

25 times

b)

30 times

c)

33 times

d)

50 times

53.

The probability of landing on a green section of a spinner twice in a row is $\frac{1}{16}$ . If the spinner is spun twice in a row 128 times, how many repetitions of the two spins in a row do you predict will land on green both times?

(a)

54.

Sienna flipped a fair coin three times in a row. She did this a total of 120 sets of three tosses. About how many of these times do you predict she got at least one heads?

(a)

Review 2

Total questions: 54

Worksheet time: 1hrs 6mins

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