Cosmic Math Mission
A free, printable Grade 7 multi-step word problem worksheet themed around Space. Each problem takes two or three steps to solve. Work them on screen or print the PDF — a teacher/parent answer key is included.
Show answer key (for grown-ups)
1.A rocket has a main tank with 500 gallons of fuel. Engineers pump 120 gallons into each of the 3 booster engines. The leftover fuel is divided equally between 2 steer thrusters. How many gallons of fuel does each steer thruster get?70
2.A team of 4 astronauts goes on a 10-day space trip. Each astronaut eats 3 meal packs every day. If their supply ship brought 150 meal packs, how many extra packs do they have left at the end?30
3.A Mars rover starts the day with 240 watts of battery power. It drives for 8 hours, using 15 watts of power every hour. Then, it uses another 20 watts to send pictures back to Earth. How many watts of power are left in the battery?100
4.Leo has 3 boxes of rare space rocks, with 18 rocks in each box. He donates 12 rocks to the science museum. He divides the rest of the rocks equally among his 6 friends. How many rocks does each friend get?7
5.Satellite A orbits Earth 14 times a day, and Satellite B orbits 12 times a day. Over 5 days, they orbit many times. However, a computer glitch causes them to miss 15 orbits in total. How many orbits did they actually complete?115
6.The space station has 8 huge solar wings, and each wing has 24 active panels. Astronauts turn off 16 panels to clean them. They divide the remaining working panels equally to power 8 different labs. How many panels power each lab?22