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 | ||
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10 |
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.
8th grade / Number / Powers & Roots / Indices / Divide Indices
Indices are terms that have been raised to a power such as 5βΆ or yβ΄. This means the term has been multiplied by itself that number of times.
6β΄ = 6 x 6 x 6 x 6 and yβ΅ = y x y x y x y x y
So the term indice simply means a number or term raised to a power.
Indices with the same base can be divided by subtracting powers. So aΒ³ and aβΆ have the same base "a", but xΒ³ and yβΆ do not have the same base and cannot be simplified by subtracting powers.
To understand why dividing indices with the same base involves subtracting powers, consider xβ· Γ· xβ΄. If we expand both indices we get:
x x x x x x x x x x x x x
x x x x x x x
Since we know that x divided by x is 1, we can cancel terms top and bottom to simplify the expression leaving x x x x x.
xβ· Γ· xβ΄ = xΒ³
So we can see that dividing xβ· by xβ΄ gives us xΒ³. In general, you can divide indices with the same base by subtracting the powers.
If one or more of the terms is raised to a negative power, you should follow simple arithmetic rules to subtract the powers.
pβ»β΅ Γ· pΒ³ = pβ»βΈ
pβ»β΅ Γ· pβ»Β³ = pβ»Β²
If there are coefficients in front of the bases, divide the coefficients first and then subtract the powers.
15pβ΅ Γ· 3pΒ³ = 5pβ΅
With our Rock fall math game you will be practicing the topic "Divide Indices" from 8th grade / Number / Powers & Roots / Powers & Roots. The math in this game consists of 16 questions that ask you to divide indices with the same base by subtracting powers e.g. 6bβ΅ Γ· 2bΒ² = 3bΒ³.
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
There are rocks falling from an unstable cliff. You need to break the rocks by clicking / tapping on them...
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