Game: FOUR IN A ROW
Aim: To get four symbols in a row
Method:
Choose a square and click on it. Click on the correct answer to the question in the box that appears. If you are right the square is replaced by a tick. Continue until you have won 4 in a row...
anonymous 🤫🤭
"Order positive integers"
4 IN A ROW game to practice
'Divide Indices' for 8th grade
8th grade / Number / Powers & Roots / Indices / Divide Indices
Divide indices with the same base by subtracting powers
What are indices?
Indices are terms that have been raised to a power such as 5⁶ or y⁴. This means the term has been multiplied by itself that number of times.
6⁴ = 6 x 6 x 6 x 6 and y⁵ = y x y x y x y x y
So the term indice simply means a number or term raised to a power.
How to divide indices with the same base
Indices with the same base can be divided by subtracting powers. So a³ and a⁶ have the same base "a", but x³ and y⁶ 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 x⁷ ÷ x⁴. 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.
x⁷ ÷ x⁴ = x³
So we can see that dividing x⁷ by x⁴ gives us x³. 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.
p⁻⁵ ÷ p³ = p⁻⁸
p⁻⁵ ÷ p⁻³ = p⁻²
If there are coefficients in front of the bases, divide the coefficients first and then subtract the powers.
15p⁵ ÷ 3p³ = 5p⁵
With our Four in a row 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. 6b⁵ ÷ 2b² = 3b³.
The game will reinforce the math you have chosen to learn by getting you to match the question to the correct answer.
Notes
- Do the Math lessons for your topic before playing this game
- Wrong answers are ok, you just have to try again until you get them right
- There is help available for all games by clicking the question mark button
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
How to play 4 in a row to practice
'Divide Indices' for 8th grade
- Select "4 in a row" on the math games selection page.
- Take a quick look at the method text for 4 in a row.
- Click on PLAY to proceed, or change your topic with the CHANGE TOPIC button.
- On the play page you have a grid of 16 pictures (some topic picture are shown multiple times for shorter topics).
- Click on a picture cell.
- The topic question will appear along with a series of possible answers.
- Click the speaker icon to hear any particular answer (Speech enabled browsers only).
- Click the answer that corresponds to the picture question.
- If you are correct, the picture will be replaced by a tick - otherwise, a wrong sound will play.
- Continue matching picture questions to their correct answers until you have completed a line of 4 cells.
- The line can be diagonal as well as horizontal or vertical.
- 4 ticks in a row wins the game.
- Choose an option from the green sign, or click on games to choose a different game.
