Sig. Figs., Scientific Notation, and Rounding

Round 1047.78 to three sig figs

• 104
• 105
• 1050
• 1050.00

Tags

CCSS.5.NBT.A.4

Round 1009 to three sig figs

• 100
• 101
• 1010
• 1000

Calculate 12.34 + 1.234 + 0.1234 and report the answer using the most appropriate number of sig. figs.

• 13.6974

• 13.697

• 13.70

• 13.7

Calculate 12.34 × 1.234 × 0.1234 and report the answer using the most appropriate number of sig. figs

• 1.8791

• 1.879

• 1.9

• 1.88

Calculate 5.50 cm + 5.50 cm and give your answer with the appropriate number of significant figures.

• 11 cm
• 11.0 cm
• 11.00 cm
• 11.000 cm

Solve. Round using SigFig math rules.

12.5 mL + 20.05 mL + 2.69 mL

• 35 mL

• 35.2 mL

• 35.24 mL

• 35.240 mL

Solve. Round using SigFig math rules.

98.7°C - 97.25°C

• 1°C

• 1.4°C

• 1.45°C

• 1.5°C

Choose the measurement that is most acceptable when reporting the volume of liquid measured by this graduated cylinder.

• 6.5 mL

• 6.59 mL

• Errrrr...a little more than six and a half milliliters.

• 6.65 mL

The diameter of a carbon atom is 0.000 000 000 154 m.  What is this number expressed in scientific notation?

• 1.54 x 10^-10
• 1.54 x 10¹⁰
• 1.54 x 10^-12
• 1.54 x 10¹²

Tags

NGSS.HS-PS1-7

How many significant figures does the following number have: 0.002040

• 6
• 4
• 3
• 2

Tags

CCSS.8.EE.A.4