Skip to content

Learn

Number Theory

Level 4 - foundation

Primes (100-500)

6 visual blocks - structure tests

1

Read the shape

Level 4 visual plan for Primes (100-500)
Look for digit and factor structure. Primes (100-500).

Look for digit and factor structure. Primes (100-500).

2

Pick the method

Number Theory: block 2 Visual guide level shape Primes (100-500)Pick the methodUse divisibility, remainders, GCD, or LCM. image-first, then practice
Use divisibility, remainders, GCD, or LCM.

Use divisibility, remainders, GCD, or LCM.

3

First move

Number Theory: block 3 Visual guide level shape Primes (100-500)First moveRun the cheapest test first. image-first, then practice
Run the cheapest test first.

Run the cheapest test first.

4

Check

Number Theory: block 4 Visual guide level shape Primes (100-500)CheckUse GCD x LCM = product when relevant. image-first, then practice
Use GCD x LCM = product when relevant.

Use GCD x LCM = product when relevant.

5

Play the mode

Number Theory: block 5 Visual guide level shape Primes (100-500)Play the modeUse the quickest safe method. image-first, then practice
Use the quickest safe method.

Use the quickest safe method.

6

Watch-out

Number Theory: block 6 Visual guide level shape Primes (100-500)Watch-outDo not trial-divide every number. image-first, then practice
Do not trial-divide every number.

Do not trial-divide every number.

Level 3 Level 5

Practice Level 4

Open this exact level.

Start Level

We use cookies for analytics to improve your experience. Essential cookies for authentication are always active. Privacy Policy