The level of difficulty is graded from 1 till 4, where level 1 is the easiest and level 4 the most difficult. The level of difficulty for the exercises depends on which numbers appear. Below is a simplified, as well as a detailed, overview of which numbers are used in the exercises.
Simplified info about levels 1-4
Addition |
Level |
Integers |
1 |
0-10 |
2 |
1-20 |
3 |
1-20 |
4 |
1-100 |
Subtraction |
Level |
Integers |
1 |
0-10 |
2 |
1-15 |
3 |
1-20 |
4 |
1-20 |
Multiplication |
Level |
Integers |
1 |
0, 1, 2, 5 & 10 |
2 |
0-5 & 10 |
3 |
1-10 |
4 |
1-12 |
Division |
Level |
Integers |
1 |
0-50 |
2 |
2-50 |
3 |
12-60 |
4 |
12-100 |
Detailed info about levels 1-4
Addition (a+b=c) |
Level 1 |
Integer a: 0-10 |
Integer b: 0-10 |
Integer c: 0-10 |
|
Level 2 |
Integer a: 1-20 |
Integer b: 1-20 |
Integer c: 2-20 |
|
Level 3 |
Integer a: 1-20 |
Integer b: 1-20 |
Integer c: 2-40 |
|
Level 4 |
Integer a: 1-100 |
Integer b: 1-100 |
Integer c: 11-100 |
Subtraction (a−b=c) |
Level 1 |
Integer a: 0-10 |
Integer b: 0-10 |
Integer c: 0-10 |
|
Level 2 |
Integer a: 1-15 |
Integer b: 1-15 |
Integer c: 0-14 |
|
Level 3 |
Integer a: 1-20 |
Integer b: 1-20 |
Integer c: 0-19 |
|
Level 4 |
Integer a: 1-20 |
Integer b: 1-20 |
Integer c: (-5)-19 |
Multiplication (a×b=c) |
Level 1 |
Integer a: 0, 1, 2, 5 eller 10 |
Integer b: 0, 1, 2, 5 eller 10 |
Integer c: 0-100 |
|
Level 2 |
Integer a: 0-5 |
Integer b: 0-5 |
Integer c: 0-100 |
|
Level 3 |
Integer a: 1-10 |
Integer b: 1-10 |
Integer c: 1-100 |
|
Level 4 |
Integer a: 1-12 |
Integer b: 1-12 |
Integer c: 1-144 |
Division (a÷b=c) |
Level 1 |
Integer a: 0-50 |
Integer b: 1-5 eller 10 |
Integer c: 1-5 eller 10 |
|
Level 2 |
Integer a: 2-50 |
Integer b: 2-10 |
Integer c: 1-10 |
|
Level 3 |
Integer a: 12-60 |
Integer b: 2-10 |
Integer c: 2-10 |
|
Level 4 |
Integer a: 12-100 |
Integer b: 2-10 |
Integer c: 2-10 |
Example, addition level 2
a+b=c where 1≤a≤20, 1≤b≤20 and 2≤c≤20
If e.g. a=18 then b must be either 1 or 2, because c≤20.
Example, subtraction level 2
a−b=c where 1≤a≤15, 1≤b≤15 and 0≤c≤14
If e.g. a=12 then 1≤b≤12, because c≥0.