Basic facts
1	Number words to twenty
2	Words to numbers up to twenty
3	Compare: before, after, between
4	Is greater than, is less than
5	Ordinal number
6	Odd or even
7	Check-up (1)
8	Addition facts to 12
9	Subtraction facts to 12
10	Addition and subtraction fact to 12
11	Addition with missing number
12	Add three numbers
13	Subtraction with missing number
14	Subtract three numbers
15	Check-up (2)
16	Word problem: addition to 12
17	Word problem:subtraction to 12
18	Check-up (3)
19	Check-up (4)