Sig Fig Calc & Rounding

How many sig figs?

21.10 cm

• 4

• 3

• 2

• 1

How many sig figs?

70,000. m

• 5

• 4

• 3

• 2

• 1

How many sig figs?

0.00794 mg

• 6

• 5

• 4

• 3

240 cm = ___________ m

• 2400
• 24
• 2.4
• 0.24

15.6 L = ___________ mL

• 15,600
• 156,000
• 1,560,000
• 15,600,000

65g = ___mg

• 650
• 6,500
• 65,000
• 6

When going from a larger unit to a smaller unit ...

• Someone was eating healthy
• Multiply
• Divide
• Times 10

When going from a smaller unit to a larger unit ...

• There must of been protein involved
• Multiply
• Divide
• Times 10

Write 0.000972 in scientific notation.

• 9.72 x 10^-4
• 9.72 x 10^-3
• 972 x 10^-4
• 9.72 x 10⁴

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