sig figs and scientific notation

calculate the following to the correct number of sig figs.
17.2  + 65.18 +2.4

• 84.8
• 85
• 84.78
• 85.0

calculate the following to the correct number of sig figs.
13.2017/ 17.10

• .772
• .7720
• .772030
• .77

calculate the following to the correct number of sig figs.
0.00401  x  2.00  x  501

• 4.02
• 4
• 4.0
• 4.0180

calculate the following to the correct number of sig figs.
32.451 - 21.5

• 11.0
• 10.951
• 11
• 10.95

write the number in scientific notation
203000

• 2.03x10 ⁵
• 2.030x10 ⁴
• 2.0300x10 ^{- 5}
• 203 x 10 ³

write the number in scientific notation
0.000450

• 4.50x10 ^{- 4}
• 4.50x10 ⁴
• 4.5x10 ^{- 4}
• 4.5 x 10 ⁴

How many significant figures does the following number have: 0.002040

• 6
• 4
• 3
• 2

Tags

CCSS.8.EE.A.4

How many significant figures does the following number have: 0.998005

• 9
• 10
• 6
• 5

How many significant figures does the following number have: 100.00210

• 7
• 5
• 10
• 8

Tags

CCSS.8.EE.A.4

Round 1047.78 to three sig figs

• 104
• 105
• 1050
• 1050.00

Tags

CCSS.5.NBT.A.4