Complete the pattern of stars: 5,10,15...,....,...,35,...,...,50
Complete the pattern of rockets: 10,20,...,...,...,60,...,...,...,100
If there are 5 rockets and each rocket can hold 6 astronauts. Then how many astronauts can go all together?
An astronaut needs 5 oxygen tanks per day. If the astronaut is gone for 10 days, then how many oxygen tanks does the astronaut need?
If there are 10 fuel tanks needed for each rocket and there are 9 rockets. Then how many fuel tanks are needed?
If there are 60 oxygen masks on a rocket and they are separated into groups of 5 for the astronauts. Then how many groups of astronauts can safely go on the rocket?