THEORY
T
1.
Natural numbers and integers
PRACTICE
P
2.
Recognising basis properties of integers
3
THEORY
T
3.
Arithmetic calculations with integers
PRACTICE
P
4.
Doing basic calculations with natural numbers
4
PRACTICE
P
8.
Carrying out a long division
3
THEORY
T
9.
Divisors, prime numbers, and prime factorisations
PRACTICE
P
10.
Decomposing a number into prime factors
4
PRACTICE
P
12.
Computing the gcd and lcm
5