β
β
Optellen en aftrekken tot en met 20
Oefen optellen en aftrekken met getallen tot en met 20. Ideaal voor jonge leerlingen die hun basisrekenvaardigheden willen versterken.
π€
8 + 3 = β¦
Front
π
11
Back
π€
7 + 6 = β¦
Front
π
13
Back
π€
9 + 8 = β¦
Front
π
17
Back
π€
6 + 7 = β¦
Front
π
13
Back
π€
8 + 7 = β¦
Front
π
15
Back
π€
9 + 5 = β¦
Front
π
14
Back
π€
7 + 8 = β¦
Front
π
15
Back
π€
8 + 9 = β¦
Front
π
17
Back
π€
6 + 8 = β¦
Front
π
14
Back
π€
7 + 9 = β¦
Front
π
16
Back
π€
14 - 7 = β¦
Front
π
7
Back
π€
13 - 6 = β¦
Front
π
7
Back
π€
15 - 8 = β¦
Front
π
7
Back
π€
17 - 9 = β¦
Front
π
8
Back
π€
16 - 8 = β¦
Front
π
8
Back
π€
18 - 9 = β¦
Front
π
9
Back
π€
12 - 5 = β¦
Front
π
7
Back
π€
13 - 7 = β¦
Front
π
6
Back
π€
15 - 7 = β¦
Front
π
8
Back
π€
16 - 7 = β¦
Front
π
9
Back
π€
16 = 9 + β¦
Front
π
7
Back
π€
18 = 9 + β¦
Front
π
9
Back
π€
17 = 8 + β¦
Front
π
9
Back
π€
15 = 7 + β¦
Front
π
8
Back
π€
14 = 8 + β¦
Front
π
6
Back
π€
13 = 6 + β¦
Front
π
7
Back
π€
12 = 5 + β¦
Front
π
7
Back
π€
18 = β¦ + 9
Front
π
9
Back
π€
17 = β¦ + 8
Front
π
9
Back
π€
16 = β¦ + 7
Front
π
9
Back
π€
15 = β¦ + 8
Front
π
7
Back
π€
14 = β¦ + 6
Front
π
8
Back
π€
13 = β¦ + 7
Front
π
6
Back
π€
12 = β¦ + 7
Front
π
5
Back
π€
11 = 8 + β¦
Front
π
3
Back
π€
13 = 7 + β¦
Front
π
6
Back
π€
14 = 9 + β¦
Front
π
5
Back
π€
15 = 8 + β¦
Front
π
7
Back
π€
17 = 9 + β¦
Front
π
8
Back
π€
18 = 8 + β¦
Front
π
10
Back
π€
12 = 7 + β¦
Front
π
5
Back
π€
11 = 9 + β¦
Front
π
2
Back
π€
16 = 8 + β¦
Front
π
8
Back