aantal sommen niveau 1:
10
-
20
-
30
-
40
-
50
aantal sommen niveau 2:
10
-
20
-
30
-
40
-
50
aantal sommen niveau 3:
10
-
20
-
30
-
40
-
50
aantal sommen niveau 4:
10
-
20
-
30
-
40
-
50
40 dm
=
m
5 m
=
dam
2 dm
=
m
0.4 hm
=
dam
10 dm
=
cm
0.7 dm
=
cm
6 mm
=
cm
3 dm
=
cm
1 m
=
dam
2 dm
=
cm
10 mm
=
cm
1 hm
=
km
0.4 dam
=
m
5 cm
=
dm
5 dam
=
hm
10 km
=
hm
0.6 m
=
dm
60 hm
=
km
30 cm
=
dm
60 cm
=
dm
antwoorden