Topic 1: Numbers in general form
Topic 2: Games with numbers
Topic 3: Letters for digits
Topic 4: Tests of divisibility by 10
Topic 5: Divisibility by 5
Topic 6: Divisibility by 2
Topic 7: Divisibility by 9 and 3
Exercise solutions
Note book
Topic 1: Numbers in general form
Topic 2: Games with numbers
Topic 3: Letters for digits
Topic 4: Tests of divisibility by 10
Topic 5: Divisibility by 5
Topic 6: Divisibility by 2
Topic 7: Divisibility by 9 and 3
Exercise solutions
Note book