Tientallen aftrekken van tientallen

Erafsommen

Oefening 1
1.	20 - 20 =
2.	80 - 20 =
3.	10 - 10 =
4.	20 - 20 =
5.	50 - 10 =
6.	40 - 10 =
7.	80 - 70 =
8.	40 - 20 =
9.	40 - 40 =
10.	80 - 10 =

Oefening 2
1.	40 - 40 =
2.	80 - 50 =
3.	70 - 10 =
4.	80 - 20 =
5.	70 - 50 =
6.	10 - 10 =
7.	40 - 20 =
8.	50 - 30 =
9.	10 - 10 =
10.	10 - 10 =

Oefening 3
1.	60 - 10 =
2.	10 - 10 =
3.	50 - 30 =
4.	10 - 10 =
5.	80 - 70 =
6.	20 - 20 =
7.	10 - 10 =
8.	70 - 50 =
9.	60 - 40 =
10.	20 - 20 =

Oefening 4
1.	40 - 20 =
2.	80 - 10 =
3.	40 - 20 =
4.	50 - 10 =
5.	80 - 20 =
6.	40 - 10 =
7.	40 - 20 =
8.	70 - 40 =
9.	70 - 20 =
10.	20 - 10 =

Tientallen aftrekken van tientallen
| ANTWOORDEN

Erafsommen

Oefening 1
1.	20 - 20 =	0
2.	80 - 20 =	60
3.	10 - 10 =	0
4.	20 - 20 =	0
5.	50 - 10 =	40
6.	40 - 10 =	30
7.	80 - 70 =	10
8.	40 - 20 =	20
9.	40 - 40 =	0
10.	80 - 10 =	70

Oefening 2
1.	40 - 40 =	0
2.	80 - 50 =	30
3.	70 - 10 =	60
4.	80 - 20 =	60
5.	70 - 50 =	20
6.	10 - 10 =	0
7.	40 - 20 =	20
8.	50 - 30 =	20
9.	10 - 10 =	0
10.	10 - 10 =	0

Oefening 3
1.	60 - 10 =	50
2.	10 - 10 =	0
3.	50 - 30 =	20
4.	10 - 10 =	0
5.	80 - 70 =	10
6.	20 - 20 =	0
7.	10 - 10 =	0
8.	70 - 50 =	20
9.	60 - 40 =	20
10.	20 - 20 =	0

Oefening 4
1.	40 - 20 =	20
2.	80 - 10 =	70
3.	40 - 20 =	20
4.	50 - 10 =	40
5.	80 - 20 =	60
6.	40 - 10 =	30
7.	40 - 20 =	20
8.	70 - 40 =	30
9.	70 - 20 =	50
10.	20 - 10 =	10