Tientallen aftrekken van tientallen

Erafsommen

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

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

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

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

Tientallen aftrekken van tientallen
| ANTWOORDEN

Erafsommen

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

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

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

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