Bab 2 standard form (1)

Bundarkan 0.68952 betul kepada tiga angka bererti.

Round off 0.68952 correct to three significant figures.

• 0.688

• 0.689

• 0.69

• 0.690

Bundarkan 721500 betul kepada tiga angka bererti.

Round off 721 500 correct to three significant figures.

• 720 000

• 722 000

• 723 000

• 730 000

• 1.4 × 10⁻⁷

• 1.4 × 10⁻⁶

• 14 × 10⁻⁷

• 14 × 10⁻⁶

4.7 × 10¹² + 7.2 × 10¹¹ =

• 5.42 × 10¹¹

• 5.42 × 10¹²

Ungkapkan 7 050 000 dalam bentuk piawai.

Express 7 050 000 in standard form.

• 7.05 × 10³

• 7.05 × 10⁶

• 7.1 × 10⁻³

• 7.1 × 10⁻⁶