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.
Name | Score | Date | ||
|---|---|---|---|---|
| 1 | ||||
| 2 | ||||
| 3 | ||||
| 4 | ||||
| 5 | ||||
| 6 | ||||
| 7 | ||||
| 8 | ||||
| 9 | ||||
| 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
'Subtraction: bridge through 10' for kindergarten
Kindergarten / Subtraction / Subtracting numbers / Subtraction: bridge through 10
Kindergarten : Subtraction :
Subtract a single digit number from a double digit number
In this topic we are going to look at taking away (subtracting) a single digit number like 4 or 7 from a double digit number like 12 or 15 (this is sometimes called 'bridge through 10' because you are counting down from double digits to single digits through the number 10). This is a little bit harder than subtracting single digit numbers but not much harder. So, how can we work out the answer to the following sum :
12 - 7
We know we can subtract numbers by counting down from the first (bigger) number by the same number of steps as the second (smaller) number. So to subtact 6 - 3, we start with 6 and count down three places to 5 then 4 then 3, and 3 is the answer.
When we are subtracting from a double digit number, we do the same thing. So, for 12 - 7, we are going to start with 12 and count down seven places - so, 11, 10, 9, 8, 7, 6, 5. So we can say :
12 - 7 = 5
If you find counting down hard, a different way to work out the sum is to start with the smaller number and count up to the bigger number, and the number of steps you take will be the answer. So if we have the sum 9 - 5, we can count up from 5: to 6, then 7, then 8, then 9. So that was 4 steps and the answer is 4. For 12 - 7, we would start at 7 then :
- up 1 to 8
- up 1 to 9
- up 1 to 10
- up 1 to 11
- up 1 to 12
The number of steps from 7 up to 12, which is the answer, is 5
Another question from the topic is :
17 - 8
So let's use our counting up method. We start at 8, plus 1 to 9, plus 1 to 10, plus 1 to 11, plus 1 to 12, plus 1 to 13, plus 1 to 14, plus 1 to 15, plus 1 to 16, plus 1 to 17. How many steps was that? It was 9 steps so we can say :
17 - 8 = 9
With our Rock fall math game you will be practicing the topic "Subtraction: bridge through 10" from Kindergarten / Subtraction / Subtracting numbers. The math in this game consists of 16 questions that ask you to subtract a single-digit number from a double-digit number by counting down through 10.
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
'Subtraction: bridge through 10' for kindergarten
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.
