Addition and Subtraction in Space

Addition and Subtraction in Space

Description: Practice for CCSS.Math.Content.1.OA.C.6 Add and subtract within 20, demonstrating fluency for addition and subtraction within 10.

Tags: 1st grade math, Addition, Subtraction, CCSS.Math.Content.1.OA.C.6 1st Grade

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⎙ Print Exercise Worksheet
Question 1 (Short Answer, 10 points)

If an astronaut has 7 space stones and they find 5 more, how many do they have altogether?





Question 2 (Short Answer, 10 points)

There are 15 stars in a constellation, but 4 fall away. How many stars are left?



Question 3 (Short Answer, 10 points)

A spaceship has 9 fuel cells, and the captain finds 9 more. How many fuel cells does the spaceship now have?





Question 4 (Short Answer, 10 points)

There are 17 meteors coming towards a planet, but 7 are destroyed. How many meteors are still coming?



Question 5 (Short Answer, 10 points)

If a space rover finds 5 moon rocks, and then finds 4 more, how many moon rocks does it have altogether?





Question 6 (Short Answer, 10 points)

A star cluster has 14 stars, but 3 are sucked into a black hole. How many stars remain?



Question 7 (Short Answer, 10 points)

An alien has 8 space coins and it finds 5 more. How many space coins does the alien now have?



Question 8 (Short Answer, 10 points)

A space station had 18 space capsules, but 6 floated away. How many space capsules remain?



Question 9 (Short Answer, 10 points)

A space explorer found 6 crystals on one planet and 2 on another. How many crystals did they find in total?



Question 10 (Short Answer, 10 points)

A galaxy had 15 planets, but 5 were consumed by a supernova. How many planets are left?