Question

solve. match journal using different number words, write three pairs of equivalent very large numbers. for example, 1 billion is equivalent to 1000 million. then write three pairs of equivalent very small numbers. use decimals in at least two of your number pairs. 9
a virus measures 250 billionths of a metre. a bacterium measures 45 millionths of a metre. which is larger? how many times larger is it than the other? 10
the distance between earth and the sun is about 150 million kilometres. the distance between earth and uranus is about 2.7 billion kilometres. which distance is greater? how many times greater is it? 11

Explanation:

Step1: Compare the distances

The distance between Earth and the Sun is 150 million kilometers = 150000000 km. The distance between Earth and Uranus is about 2.7 billion kilometers = 2700000000 km. Since 2700000000>150000000, the distance between Earth and Uranus is greater.

Step2: Calculate the ratio

To find how many times greater, divide the distance between Earth and Uranus by the distance between Earth and the Sun. $\frac{2700000000}{150000000}=18$.

Answer:

The distance between Earth and Uranus is greater. It is 18 times greater.