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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

Number bonding to 200
      
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UXO game to practice
'Number bonding to 200' for 4th grade

Addition - Number bonding - Number bond to 200, multiples of 10

Number bonding is a method for recognizing common combinations of numbers that add to a specific target number. In this topic we are looking at pairs of numbers that bond to 200, and specifically, multiples of 10 that bond to 200. So, the obvious pair you might think of is:

100 + 100 = 200

Obviously there are many other combinations that also bond to 200:

50 + 150 = 200

80 + 120 = 200

40 + 160 = 200

One thing you will notice is that we could knock off the final zero and think about number pairs that bond to 20. You will also notice that we can play around with these bonds to derive related facts - for instance:

30 + 170 = 200

170 + 30 = 200

30 = 200 - 170

170 = 200 - 30

200 - 170 = 30

200 - 30 = 170

So knowing your number bonds opens up a lot of related facts that can speed up your mental arithmetic.


Related topics:

With our UXO math game you will be practicing the topic "Number bonding to 200" from 4th grade / Addition / Number bonding. The math in this game consists of 30 questions that ask you to identify pairs of multiples of 10 that bond to 200.

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
'Number bonding to 200' for 4th 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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