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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

Subtract mixed fractions with borrowing
      
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UXO game to practice
'Subtract mixed fractions with borrowing' for 4th grade

Subtract mixed numbers with borrowing

A mixed number has a whole number part and a fraction part. Sometimes when you want to subtract 2 mixed numbers, you will find that the fraction part of the second number is greater than that of the first. For instance, in the sum 2⅓ - 1⅔ the fraction part of the second number is greater than the fraction part of the first number.

So one way to solve such a sum is to borrow 1 from the first whole number (which is reduced by 1) and add it to the fraction part so that the fraction part of the first number becomes greater than the fraction part of the second number. In our example, 2⅓ - 1⅔ becomes:

Image showing steps in subtracting mixed fractions using borrowing This image shows the steps required to subtract mixed fractions using borrowing213-123=113+33-123=143-123

Now you can subract the fraction part first, and then the whole numbers to arrive at the solution.

A different way to think about this sum (and any similar sum where the denominators of the fraction parts are the same) is to count up from the second number to the first. So in our example above, counting up from one and two thirds to two gives us one third, and then we need another third to get to the first number two and a third, so the difference between the 2 numbers is two thirds.

With our UXO math game you will be practicing the topic "Subtract mixed fractions with borrowing" from 4th grade / Fractions / Subtract fractions. The math in this game consists of 14 questions that ask you to use borrowing to subtract mixed fractions.

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
'Subtract mixed fractions with borrowing' 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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