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14.33+(1 x 10)=21.23
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ROCK FALL
PLAY
Click / tap on each falling rock. Answer the question in the box as quickly as you can.
There are only 4 questions in this game so it is quite short... if you can get those rocks!

Your final score is based on number of questions answered right / wrong, and the time taken.
...

Game: ROCK FALL

Aim: Smash all the falling rocks

Method:
Click / tap on each falling rock. Answer the question in the box as quickly as you can.
There are only 4 questions in this game so it is quite short... if you can get those rocks!

Your final score is based on number of questions answered right / wrong, and the time taken.

Best price - divide by 9
      
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ROCK FALL game to practice
'Best price - divide by 9' for 5th grade

With our Rock fall math game you will be practicing the topic "Best price - divide by 9" from 5th grade / Multiply + Divide / Best Price. The math in this game consists of 14 questions that ask you to use division by 9 to work out the saving made by purchasing a packet of 9 rather than individual items.

Word problems: best price per item

Learn how to work out saving per item by buying a packet or box rather than individual items

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 ¢ each, but buying a packet of 10 marbles might cost say 80 ¢. 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 ¢ ÷ 10 = 8 ¢

Which compares to 10 ¢ if we buy the marbles individually. So in this case the saving ** per item ** (which is what these topics are about) is:

10 ¢ - 8 ¢ = 2 ¢

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!

Click / tap on rocks and answer math questions to win the game

Large thumbnail for math game Rock fall

ROCK FALL is based on the road traffic warning sign for falling rocks - a sign that seems a bit less useful than somebody getting up there on that cliff and actually doing something about it... Anyway, the rocks are falling and it is your job to stop them hitting the road below, or at least stopping them hitting the road below too many times and breaking it. Smash the rocks by clicking or tapping on them (not so easy in real life of course) - they will turn into snowflakes and float gently down into nothing.

There are 4 rocks to stop and not much time to do it (if you want to get a good score and get on the leaderboard). This game is fun and fast and requires good reflexes and a good strategy. Plan to break the smaller rocks first if you want a good score because the rocks fall faster as the game progresses. It also helps to decide where on their path you plan to click / tap the rocks.

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How to play ROCK FALL to practice
'Best price - divide by 9' for 5th grade

Free Math Games screenshot of Rock fall game for elementary

There are rocks falling from an unstable cliff. You need to break the rocks by clicking / tapping on them...

  1. Press "PLAY" on the settings page to open the game page.
  2. There is a short countdown before the game starts.
  3. Rocks start falling from the cliff.
  4. Click or tap on a rock to break it into a snowflake - a question box will open with up to 4 multiple choice answers or an on-screen keyboard.
  5. Enter or click/tap the correct math answer to close the question box.
  6. Rocks fall faster as the game progresses.
  7. Clear all the rocks to finish the game.
  8. It is a good idea to hit the small rock first as it gets much harder if you leave it until later.
  9. This is a timed game and your score is calculated by adding 10 seconds for each wrong answer to your game time.
  10. If you get one of the 10 best times for the topic you can add your name to the leaderboard for your chosen topic.
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