RPA 9x1 Standard form

True or False:

13.7 × 10³ is written in standard form.

• True

• False

Tags

CCSS.8.EE.A.3

What is 6.7 × 10⁴ written

as an ordinary number?

• 67000

• 6700

• 670000

• 0.00067

What is 3 × 10^-2 written

as an ordinary number?

• 300

• 3000

• 0.03

• 0.3

What is 45,000 written in standard form?

• 45 × 10³

• 4.5 × 10⁴

• 4.5 × 10³

Tags

CCSS.8.EE.A.3

What is 0.00051

written in standard form?

• 5.1 × 10^-4

• 51 × 10^-4

• 5.1 × 10^-5

Calculate

(12 × 10³) ÷ (4 × 10¹)

Give your answer in standard form.

• 3 × 10²

• 300

• 3 × 10⁴

Tags

CCSS.8.EE.A.4

Find the standard form value of (2.5 x  $10^4$  ) x ( 6 x  $10^{-9}$  )

•  $15\ \times10^{-5}$  

•  $15\ \times10^{-4}$  

•  $1.5\ \times\ 10^{-4}$  

•  $1.5\ \times\ 10^{-6}$  

Multiply:

(9.4 x 10⁶) x (3.2 x 10⁵)

• 30.08 x 10¹¹

• 3.8 x 10¹

• 3.008 x 10¹²

• 2.9375 x 10¹

(9.6×10^-8) ÷ (2×10^-15)

• -4.8×10⁷

• 4.8×10⁷

• 4.8×10^-7

• -4.8×10^-7

Divide:

(6.9 x 10⁷) ÷ (2.3 x 10^-3)

• 3 x 10¹⁰

• 3 x 10⁴

• 3 x 10^-4

• 3 x 10^-11