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...
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4 IN A ROW game to practice
'LCM using product notation' for 7th grade
7th grade / Number / Multiples Factors Primes / Multiples / LCM using product notation
Show the lowest common multiple of 2 numbers using product notation
To find the lowest common multiple (LCM) of two numbers, you need to find the smallest multiple that both numbers have in common. One way to do this is to use prime factorization and product notation. Here are the steps:
- Write each number as a product of prime factors.
- Then write the prime factors of each number, multiplying each factor by the highest power it appears in either number.
For example:
The prime factorization of one number is 2² x 3 x 5.
The prime factorization of the other number is 2 x 3² x 7.
The product notation is 2² x 3² x 5 x 7.
If required, you can simplify the product notation by multiplying the bases and their respective exponents. For example, 2² x 3² x 5 x 7 = 4 x 9 x 5 x 7 = 1260.
Here's an example of how to find the LCM of 12 and 15 using product notation:
Write each number as a product of prime factors.
- The prime factorization of 12 is 2² x 3
- The prime factorization of 15 is 3 x 5
Write the prime factors of each number in product notation, multiplying each factor by the highest power it appears in either number: 2² x 3 x 5. Note that the factor 5 appears in only one of the numbers but we still include it in the product notation.
To get the LCM as a number you can simplify the product notation by multiplying the bases and their respective exponents.
Therefore, the LCM of 12 and 15 is 2² x 3 x 5 in product notation, which is 60.
In this topic you are asked to use prime factorization to derive the lowest common multiple of 2 numbers and present your answer using product notation.
With our Four in a row math game you will be practicing the topic "LCM using product notation" from 7th grade / Number / Multiples Factors Primes / Multiples Factors Primes. The math in this game consists of 16 questions that ask you to identify the lowest common multiple (LCM) of 2 numbers using product notation.
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
'LCM using product notation' for 7th 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.
