3 scores max per player; No foul language, show respect for other players, etc.
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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
4th grade / Multiply + Divide / Best Price / Dividing by 8
This topic focuses on the idea that you can often spend less per item if you buy a packet or so called mutli-pack. Manufacturers often accept less per item when selling more of a particular item. So, how can we work out how much is saved per item if we buy in bulk? What we need to do is work out the cost of each item in a pack, and compare that to the cost of an item bought singly.
The first question in this topic is as follows. If marbles cost 8 cents each, but a packet of 8 costs 56 cents, what is the amount you save PER ITEM by buying the packet.
So, if a packet of 8 marbles costs 56 cents then each marble in the packet costs:
56 ยข รท 8 = 7 ยข per marble
Which compares to 8 ยข if we buy them individually.
So in this case the saving PER ITEM is:
8 ยข - 7 ยข = 1 ยข per item
Note that you could also approach this problem through multiplication. Rather than dividing the packet price by 8, you could multiply the cost of the single item by 8. This would give you the difference in price for a packet. You would then need to divide to get the saving per item.
If you are finding this difficult, you might like to work through the lesson Introduction and Either / or activities before tackling the games.
With our UXO math game you will be practicing the topic "Dividing by 8" from 4th grade / Multiply + Divide / Best Price. The math in this game consists of 16 questions that ask you to use division by 8 to work out the best value for money item.
In these math topics, we explore division by working out what the price per item is if you buy a whole pack or other group container like a box or a book (of stamps). Often retailers will price a group of items in a box or packet at less per item in order to sell a greater quantity of items.
For instance, buying individual marbles might cost 10 ยข each, but buying a packet of 10 marbles might cost say 80 ยข. In this case, you can probably see immediately that the pack price is "better" than the individual price, but how can we work out what the acutal saving is? There are 2 simple ways to work out the saving: either multiplying the individual item price by the number of items sold in the packet, or dividing the packet price by the number of items in the packet. If we do the latter we find that the price of each marble in the packet is
80 ยข รท 10 = 8 ยข
Which compares to 10 ยข if we buy the marbles individually. So in this case the saving ** per item ** (which is what these topics are about) is:
10 ยข - 8 ยข = 2 ยข
Next time you are in a shop where you can choose to buy a packet or individual items, see if you can figure out what the saving is... it could save you a packet!
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.
Music : Robotertanz by Shane Ivers
Images sourced from Pixabay by the following artists:
UXO * Duck shoot * The frog flies * Pong * Cat and mouse * The beetle and the bee
Rock fall * Four in a row * Sow grow * Choose or lose * Mix and match
UXO is a "click to clear" game with targets to hit and bombs to avoid.
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