# Sigma Prime Lite

## Prime Factorisation with Multiplication and Division

Use multiplication and division with primes and prime factorisation to defeat the alien invasions. Make use of divisibility strategies to achieve higher scores and progress to the next challenge.

## Selection of related activities

Curriculum-aligned activities

• ### Short division

Refine and use efficient written methods to divide HTU by U. Use efficient written methods to divide integers and decimals by a one-digit integer.

• ### Factors and multiples

Find factors and multiples of a number including listing factors in pairs to find all the factors of large numbers. Find common multiples and lowest/least common multiples without the use of the Product of Prime Factors, simple cases only. Find common factors and highest common factor (HCF), including using the term divisor and use given results as an aid.

• ### Prime numbers

Understand the definition of a prime number as an integer with exactly 2 factors and be able to test for a number being prime. Know that 2 is the first prime number and the only even prime number.

• ### Find prime factors

Find the prime factors of two-digit numbers.

• ### Product of prime factors

Know the terms product of prime factors and prime factor decomposition. Use a factor tree or similar method to decompose numbers including writing the answer in index form.

• ### Square numbers

Recognise and calculate the square number sequence up to 144 and also include simple higher values, e.g. 400, 10000. Understand the square roots as the reverse process of squaring. Only consider positive square roots.

## What teachers say about Mangahigh

We’re loved by both teachers and students globally. Here’s the proof!

• Mangahigh turns our students into “maths addicts“ who compete with each other for top scores and gold medals. And since the quizzes reward both accurate recall of knowledge and deep conceptual understanding, every hour they spent having fun makes them better mathematicians. Five stars.

###### Tom Ding

• I have used Mangahigh in my classroom for over 5 years. What keeps me coming back are the math games and wide range of concepts that are offered. But the best part is the fact that the kids LOVE to play it. I have students beg me to assign them Teacher Challenges! Begging for more math work? I am ok with that!!

###### Renee Hernandez

Green Elementary School, Allen, Texas

• Kids loved it; an ADHD student who has NEVER before been able to focus in the last periods of the day; he wouldn't stop till he got a medal! Absolutely phenomenal! His mother is overjoyed, and the rest of the maths staff room were gobsmacked!

###### Joseph Peacock

Emanuel School, NSW