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
80 mm
=
cm
0.2 km
=
hm
2 dm
=
cm
5 m
=
dam
1 dm
=
m
20 dm
=
m
6 m
=
dam
6 mm
=
cm
8 cm
=
mm
3 dam
=
hm
10 mm
=
cm
6 dm
=
m
0.8 km
=
hm
0.6 dam
=
m
1 dm
=
cm
0.7 m
=
dm
3 dm
=
cm
1 mm
=
cm
40 dm
=
m
9 mm
=
cm
antwoorden