You got:
| 14.33 | + | (1 x 10) | = | 21.23 |
| time | + | (wrong x 10) | = | score |
3 scores max per player; No foul language, show respect for other players, etc.
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|---|---|---|---|---|
| 1 | ||||
| 2 | ||||
| 3 | ||||
| 4 | ||||
| 5 | ||||
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| 10 |
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.
alexeeeerrrrrrr
"Doubling each time"
ROCK FALL game to practice
'Prime factors' for 4th grade
4th grade / Multiply + Divide / Prime factors / Prime factors
Identify prime factors
Prime numbers are special numbers that can only be divided by 1 and the number itself without leaving a remainder. In other words, they have exactly two factors. So the number 3 is a prime number because it is divisible only by 3 and 1. The first few prime numbers are 2, 3, 5, 7, 11, 13, 17, and 19. Many numbers are not prime, they are composite numbers - numbers that have more than two factors. These numbers can be divided by different numbers, not just 1 and themselves. For example, 4 can be divided by 1, 2, and 4.
Prime factorization is a way to break down a composite number into smaller pieces that are all prime numbers. These smaller prime numbers are called "prime factors". To work out the prime factors of a number, start with the smallest prime number, 2, and see if it divides the given number without leaving a remainder. If it does, write down the number 2 and the result of the division. If it doesn't, move on to the next smallest prime number, 3, and try again. Repeat this process until you've found all the prime factors.
What are the prime factors of 10?
- First, divide 10 by the smallest prime number, which is 2.
- 10 ÷ 2 = 5. The result is another prime number, 5.
- So, the prime factors of 10 are 2 and 5 (10 = 2 x 5).
The prime factors of 10 are 2, 5
What are the prime factors of 60?
60 can be divided by 2 without leaving a remainder: 60 ÷ 2 = 30. Write down 2 and 30.
Now, check if the result (30) can be divided by 2 without leaving a remainder: 30 ÷ 2 = 15. It can, so write down 2 and 15.
The result (15) cannot be divided by 2, so move on to the next smallest prime number, 3. Check if 15 can be divided by 3 without leaving a remainder: 15 ÷ 3 = 5. It can, so write down 3 and 5.
The result (5) is a prime number, so we've found all the prime factors:
The prime factors of 60 are 2, 3, 5
In this topic you are asked to find the prime factors of numbers from 6 to 100.
Related topics
With our Rock fall math game you will be practicing the topic "Prime factors" from 4th grade / Multiply + Divide / Prime factors. The math in this game consists of 16 questions that ask you to identify the prime factors of numbers up to 105.
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.
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
Latest leaderboard entries: Rock fall
How to play ROCK FALL to practice
'Prime factors' for 4th grade
There are rocks falling from an unstable cliff. You need to break the rocks by clicking / tapping on them...
- Press "PLAY" on the settings page to open the game page.
- There is a short countdown before the game starts.
- Rocks start falling from the cliff.
- 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.
- Enter or click/tap the correct math answer to close the question box.
- Rocks fall faster as the game progresses.
- Clear all the rocks to finish the game.
- It is a good idea to hit the small rock first as it gets much harder if you leave it until later.
- This is a timed game and your score is calculated by adding 10 seconds for each wrong answer to your game time.
- If you get one of the 10 best times for the topic you can add your name to the leaderboard for your chosen topic.
