Addition
5 + 3 = ?
8 (There are 8 planets in our solar system)
10 - 2 = ?
8 (One day on Venus is almost 8 months on Earth.)
2 X 2 = ?
4 (Our Earth is 4.5 billion years old)
12 / 4 = ?
3 (Astronauts can grow up to 3% taller while spending time in microgravity. When the astronauts return to earth, their height returns to normal after a few months.)
8 + 8 = ?
16 (Neptune’s days are 16 hours long.)
11 - 1 = ?
10 (In 2011, ten-year-old Kathryn Aurora Gray discovered a supernova (a star that has run out of energy, explodes and then collapses before it dies) that no one else had seen before.)
11 x 0 = ?
0 (there is 0 volume in space, space is silent!)
24 / 3 = ?
8 (Even in an airplane, a trip to Pluto would take about 800 years.)
20 + 20 = ?
40 (Mercury is the fastest planet in our solar system. It zips around our Sun at an average of 107,000 miles per hour — that's about 40,000 mph faster than Earth.)
16 - 4 = ?
12 (A full NASA space suit costs $12,000,000)
20 x 5 = ?
100 (The Apollo astronauts' footprints on the moon will probably stay there for at least 100 million years)
60 / 6 = ?
10 (Whenever an astronaut gets out of a vehicle while in space, it’s called a spacewalk or an EVA. EVA stands for extravehicular activity. The first spacewalk was performed on March 18, 1965 by Russian cosmonaut Alexei Leonov and it lasted for 10 minutes.)
50 + 42 = ?
92 (Because of the high speed at which the Space Station orbits the earth, it only takes about 92 minutes to circle the earth once. This means that the astronauts see a sunrise or sunset every 45 minutes, totalling 15-16 of each, every 24 hours.)
23 - 9 = ?
14 (Apollo 14 astronaut Alan Shepard was the first person to play golf on the moon. It’s estimated that ball traveled for over a mile, unofficially setting the record for the longest drive in history.)
44 x 2 = ?
88 (A year on Mercury is equal to 88 Earth days.)
32 / 8 = ?
4 (The largest canyon system in the solar system is Valles Marineris on Mars. It’s more than 4,000 kilometers (3,000 miles) long — enough to stretch from California to New York. It is nine times as long and four times as deep as Earth’s Grand Canyon!)
42 + 57 = ?
99 (Our star, the sun, is so dense that it accounts for a whopping 99% of the mass of our entire solar system. That's what allows it to dominate all of the planets gravitationally.)
600 - 150 = ?
450 (The hottest planet in our solar system is 450° C or 842° F - Venus!)
(50 x 6) + 17 = ?
317 (Jupiter is 317 times bigger than the Earth)
3,200 / 2 = ?
1,600 (Neptune’s winds are the fastest in the solar system, reaching 1,600 miles per hour! Neptune’s giant, spinning storms could swallow the whole Earth.)