Scientific notation, rounding and significant figures

How many significant figures does the following number have: 0.002040

• 6
• 4
• 3
• 2

Tags

CCSS.8.EE.A.4

Round 1009 to three sig figs

• 100
• 101
• 1010
• 1000

Round 1047.78 to three sig figs

• 104
• 105
• 1050
• 1050.00

Round 1047.78 to three sig figs

• 104
• 105
• 1050
• 1050.00

Tags

CCSS.5.NBT.A.4

The correct scientific notation is: 0.000044

• 4.4 x 10⁵

• 44 x 10⁴

• 44 x 10^-4

• 4.4 x 10^-5

Write 0.00000707 in scientific notation.

• 7.07 x 10^-6
• 7.07 x 10⁶
• 707 x 10⁸
• 707 x 10^-8

How would you write 0.0005 in scientific notation?

• 50 x 10^-5

• 5 x 10^-4

• 5 x 10³

• .5 x 10³

Express the following in scientific notation:
.000457

• 457 x 10⁶
• 457 x 10^-6
• 4.57 x10⁴
• 4.57 x 10^-4

Convert to scientific notation:

520,000,000

• 52 x 10⁷

• 5.2 x 10^-7

• 5.2 x 10⁸

• 0.52 x 10⁹

Round off 1,296,717 to 3 significant figures

• 1,290,000

• 1,296,000

• 1,297,000

• 1,300,000

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3