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UXO
PLAY
Click or tap and hold to destroy the objects while avoiding the bombs. When you knock out all 10 targets, you must answer the question to continue to the next level. There is a time limit of 30 seconds to get all 10 targets or you lose 50 points.
Scoring is :
Hit target : +10
Hit bomb : -5
Right answer : +50
Wrong answers : -20
...

Game: UXO

Aim: Knock out the targets, avoid the bombs

Method:
Click or tap and hold to destroy the objects while avoiding the bombs. When you knock out all 10 targets, you must answer the question to continue to the next level. There is a time limit of 30 seconds to get all 10 targets or you lose 50 points.
Scoring is :
Hit target : +10
Hit bomb : -5
Right answer : +50
Wrong answers : -20

Check additions using inverse operations
      
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UXO game to practice
'Check additions using inverse operations' for 5th grade

How to use inverse operations to check additions

In this topic you are asked to select the correct inverse operation to use to check the given addition sum.

Inverse operations are pairs of operations that "undo" each other. For example, addition and subtraction are inverse operations, as are multiplication and division. To use inverse operations to check addition sums, you can perform the opposite operation to the addition, which should result in the original number you started with.

Let's say you have the addition problem: 25 + 7 and your answer is 32.

To check this problem using inverse operations, you can perform the opposite operation to addition, which is subtraction. So, you can subtract 7 from the answer to get back to the original number:

25 + 7 = 32

32 - 7 = 25

If the answer you get from subtracting the two numbers is the same as the number you started with (in this case, 25), then you know that your original addition problem was correct.

You can use inverse operations to check more complex addition problems. For example:

96 + 14 = 110

110 - 14 = 96


Notes on the topic: Check additions using inverse operations

In each question you are given an addition equation. You are asked to choose from a selection of 3 equations the inverse equation that will confirm the addition is correct.

With our UXO math game you will be practicing the topic "Check additions using inverse operations" from 5th grade / Add + Subtract / Checking answers. The math in this game consists of 16 questions that ask you to choose the inverse operations that correctly check these additions.

UXO is a click to clear game with multiple targets at different levels

Large thumbnail for math game UXO

UXO is a fun game to learn math where you attempt to knock over all the target objects while avoiding clicking / tapping on the bombs.

After each level, win an additional 50 points by correctly answering a math question from your selected topic. Wrong answers lose you 20 points but you can answer multiple times. Each level lasts 30 seconds: if you haven't cleared all the targets in that time, you lose 50 points. High scores can be added to the UXO leaderboards.


Notes

  • This is a fast-paced game of clicking or dragging over moving targets.
  • Also suitable for tablets and mobiles (it's actually easier than with a mouse)
  • Answer math questions correctly for a higher score
  • Hit all the targets in 30 seconds or you lose points.

Attributions

Music : Robotertanz by Shane Ivers

Images sourced from Pixabay by the following artists:


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How to play UXO to practice
'Check additions using inverse operations' for 5th grade

Free Math Games screenshot of the UXO game for elementary

UXO is a "click to clear" game with targets to hit and bombs to avoid.

  1. In each level of UXO, hit all the target objects.
  2. You can clear targets by clicking on them or by dragging over them with the mouse down.
  3. You have 30 seconds in each level to clear the targets.
  4. There are 10 levels max in the game.
  5. In the first level there are 10 targets and 5 bombs.
  6. The number of targets increases by one in each level.
  7. You get 10 points for each target you hit.
  8. You lose 5 points for each bomb you hit.
  9. When you have hit all the targets or 30 seconds have elapsed, you get a math question from your selected topic.
  10. Answering the question correctly adds 50 points to your score.
  11. A wrong answer takes 20 points away from your score.
  12. If you get a question wrong, you can try to answer again.
  13. Your final score is a combination of your targets score minus your bombs score plus the points you get from the math questions.
  14. There is a high score leaderboard for each topic.
  15. The highest possible score for a 10 question topic is 1950.
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