Writing in Standard Form

Write the number 3200 in standard form.

• 32 x 10²

• 3.2 x 10²

• 3.2 x 10³

• 3.2 x 10⁴

Write the number 0.004 in standard form.

• 4 x 10³

• 4 x 10^-3

• 4 x 10^-2

• 4 x 10²

Write the number 45 000 000 in standard form.

• 4.5 x 10⁷

• 4.5 x 10⁶

• 45 x 10⁷

• 4 x 10⁸

Write this as an ordinary number: 5.6 x 10³

• 5600

• 560

• 0.56

• 56000

Write 0.000406 in standard form.

• 4 x 10^-4

• 4 x 10^-3

• 4.06 x 10³

• 4.06 x 10^-4

Write the number 456 800 in standard form correct to 1 significant figure.

• 5 x 10⁴

• 5 x 10⁵

• 4 x 10⁵

• 4 x 10⁴

Write this as an ordinary number: 9.1 x 10^-4

• 0.0091

• 0.00091

• 0.0009

• 0.000091

Write the number 0.00302 in standard form correct to 1 significant figure.

• 3 x 10^-3

• 3 x 10^-2

• 4 x 10^-3

• 4 x 10^-2

Write this as an ordinary number: 4.03 x 10⁵

• 403 000

• 4 030 000

• 40 300

• 400 000

Which number is written in standard form:

0.5 × 10⁴ 5 × 10^-4 50 × 10⁴ 5 × 10^0.4

• 0.5 × 10⁴

• 5 × 10^-4

• 50 × 10⁴

• 5 × 10^0.4