Standard Form Test

Unit Test #8

Select your answers to the following 10 questions from the pop-up menus in the right hand column. Clicking the "Begin Test Again" button will clear all the answers.

 

 

Q1:

 

 0.049 written in standard form is A. 49 × 10-3
B. 4.9 × 10-2
C. 0.49 × 10-1
D. 0.049 × 100
Answer 1:

 

Q2:

 

Calculate (3 × 102) x (4 × 101)

 A. 1.2 × 104
B. 1.2 × 102
C. 1.2 × 103
D. 1.2 × 10 -2
Answer 2:

 

Q3:

 

 Find the square root of 0.04 and leave answer in standard form A. 2.0 x -3
B. 2.0 × 10-2
C. 2.0 × 10-1
D. 1.6
Answer 3:

 

Q4:

 

 Express the number 84.62 in standard form. A. 8.462 × 102
B. 8.462 × 103
C. 8.462 × 101
D. 8.4 × 10
Answer 4:

 

Q5:

 

 Multiply (3 × 10-2) by (4 × 10-5), giving the answer in standard form. A. 12 × 10-6
B. 1.2 × 10-6
C. 1.2 × 10-7
D. 1.2 × 1010
Answer 5:

 

Q6:

 

 The reciprocal of 0.04, written in standard form is A. 2.5 × 10-1
B. 9.6 × 10-1
C. 2.5 × 101
D. 2.5 × 102
Answer 6:

 

Q7:

 

 Which number is NOT in standard form? A. 3.6 × 100
B. 1.9 × 10-1
C. -2.8 × 10-1
D. 6 × 100
Answer 7:

 

Q8:

 

 Calculate (-0.4)2 and give answer in standard form. A. 1.6 × 100
B. 1.6 × 10-1
C. -1.6 × 10-1
D. -1.6 × 100
Answer 8:

 

Q9:

 

Write 0.0567 × 104 as an ordinary decimal number.

 A. 567
B. 5670
C. 56.7
D. 5.67
Answer 9:

 

Q10:

 

 Which number is NOT in standard form? A. 8.9 × 10-1
B. 9.6 × 10-1
C. 25 × 101
D. 3.5 × 102
Answer 10: