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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.

9 step number line
      
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ROCK FALL game to practice
'9 step number line' for 3rd grade

Count up and down in steps of 9 using a 9 step number line

Counting in steps of 9 means adding or subtracting 9 to a number each time you count. This is a great way to practice your adding and subtracting skills and learn about patterns. When you count in steps of 9 from 0 using a number line, you are also finding the numbers in the 9 times table.

A number line is a simple tool that helps us visualize and understand numbers, their order, and the relationships between them. It is a straight line with evenly spaced marks that represent numbers. The marks are often labeled with the numbers they represent, so we can identify and compare them. In this topic the number line shows the numbers from 0 to 90 and each mark going right has a value 9 more than the previous one. This is called a "9 step number line".

This topic asks you to work out what is the missing number in each 9 step number line. There is one missing number in each question.

The second question in the topic shows the 9 step number line with a missing number box under the fourth mark after the 0. To work out the missing number, start at 0 and count up in nines. You will see that the missing number is 36 because 0 + 9 + 9 + 9 + 9 = 36.

Alternatively you could have started at the marked number 72 and counted down 9 four times: 72 - 9 - 9 - 9 - 9 = 36 (but this would have been harder of course).


Related topics

With our Rock fall math game you will be practicing the topic "9 step number line" from 3rd grade / Counting / In steps of 9. The math in this game consists of 12 questions that ask you to identify the missing steps on these 9 step number lines to 90.

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
'9 step number line' for 3rd 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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