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Exercise 1a (Oral revision)

Here, we will look at ‘New General Mathematics’ for Senior Secondary 2 (SS2) and provide clear, step-by-step solutions to the questions presented in Exercise 1a of Chapter 1. Whether you’re a teacher seeking teaching materials or a student in need of guidance, you’ve come to the right place.

Exercise 1a (Oral Revision)

Instruction: Express the following in standard form.

Question 1:

32.4

$32.4$

$= 3.24 \times 10^{1}$

Question 2:

0.471

$0.471$

$= 4.71 \times 10^{-1}$

Question 3:

3 472 000

$3 472 000$

$= 3.472 \times 10^{6}$

Question 4:

0.000 613 1

$0.000 613 1$

$= 6.131 1 \times 10^{-4}$

Question 5:

4 576

$4576$

$= 4.576 \times 10^{3}$

Question 6:

51 720

$51 720$

$= 5.1720 \times 10^{4}$

Question 7:

0.043 81

$0.043 81$

$= 4.381 \times 10^{-2}$

Question 8:

0.000 000 231

$0.000 000 231$

$= 2.31 \times 10^{-7}$

Question 9:

623 000 000

$623 000 000$

$= 6.23 \times 10^{8}$

Question 10:

0.003 471

$0.003 471$

$= 3.471 \times 10^{3}$

Question 11:

8.04

$8.04$

$= 8.04 \times 10^{0}$

Question 12:

510

$510$

$= 5.10 \times 10^{2}$

Question 13:

6 500

$6 500$

$= 6.5 \times 10^{3}$

Question 14:

24.12

$24.12$

$= 2.412 \times 10^{1}$

Question 15:

0.027 9

$0.0279&=2$

$= 2.79 \times 10^{-2}$

Question 16:

0.000 193

$0.000 193$

$= 1.93 \times 10^{-4}$

Question 17:

0.102

$0.102$

$= 1.02 \times 10^{-1}$

Question 18:

12 800

$12 800$

$= 1.28 \times 10^{4}$

Question 19:

0.007 43

$0.007 43$

$= 7.43 \times 10^{-3}$

Question 20:

500.8

$500.8$

$= 5.008 \times 10^{2}$

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