Question

The table shows the diameters of three planets:


Planet Diameter (kilometers)
Neptune 4.9 ⋅ 104
Saturn 1.2 ⋅ 105
Uranus 5.1 ⋅ 104

Order the planets from greatest to least diameter.
Saturn, Uranus, Neptune

Neptune, Uranus, Saturn

Uranus, Neptune, Saturn

Saturn, Neptune, Uranus

Answer 1

@triciaal

Answer 2

one approach
make sure they have the same power the compare the "regular" number

Answer 3

if you have 200, 300 and 400 they are all hundreds so compare 2, 3 and 4 to line up

for this one I would use 10^4
compare 4.9, 12 and 5.1

now count 4.9 5.1 12

Answer 4

option 2

Answer 5

Thanks :0