Erbijsommen met vlekken tot en met 1.000

Erbijsommen

Oefening 1
1.	487	+		=	616
2.	401	+		=	520
3.	406	+		=	775
4.	370	+		=	483
5.	355	+		=	675
6.	428	+		=	571
7.	318	+		=	573
8.	396	+		=	792
9.	255	+		=	436
10.	369	+		=	501

Oefening 2
1.	429	+		=	814
2.	371	+		=	595
3.	350	+		=	639
4.	477	+		=	818
5.	479	+		=	795
6.	475	+		=	905
7.	278	+		=	500
8.	441	+		=	596
9.	462	+		=	619
10.	461	+		=	832

Oefening 3
1.	443	+		=	707
2.	259	+		=	485
3.	234	+		=	424
4.	492	+		=	600
5.	368	+		=	551
6.	465	+		=	844
7.	208	+		=	413
8.	363	+		=	666
9.	366	+		=	533
10.	419	+		=	774

Oefening 4
1.	396	+		=	758
2.	482	+		=	695
3.	431	+		=	848
4.	196	+		=	317
5.	494	+		=	982
6.	109	+		=	211
7.	222	+		=	406
8.	325	+		=	489
9.	303	+		=	584
10.	223	+		=	324

Erbijsommen met vlekken tot en met 1.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	487	+	129	=	616
2.	401	+	119	=	520
3.	406	+	369	=	775
4.	370	+	113	=	483
5.	355	+	320	=	675
6.	428	+	143	=	571
7.	318	+	255	=	573
8.	396	+	396	=	792
9.	255	+	181	=	436
10.	369	+	132	=	501

Oefening 2
1.	429	+	385	=	814
2.	371	+	224	=	595
3.	350	+	289	=	639
4.	477	+	341	=	818
5.	479	+	316	=	795
6.	475	+	430	=	905
7.	278	+	222	=	500
8.	441	+	155	=	596
9.	462	+	157	=	619
10.	461	+	371	=	832

Oefening 3
1.	443	+	264	=	707
2.	259	+	226	=	485
3.	234	+	190	=	424
4.	492	+	108	=	600
5.	368	+	183	=	551
6.	465	+	379	=	844
7.	208	+	205	=	413
8.	363	+	303	=	666
9.	366	+	167	=	533
10.	419	+	355	=	774

Oefening 4
1.	396	+	362	=	758
2.	482	+	213	=	695
3.	431	+	417	=	848
4.	196	+	121	=	317
5.	494	+	488	=	982
6.	109	+	102	=	211
7.	222	+	184	=	406
8.	325	+	164	=	489
9.	303	+	281	=	584
10.	223	+	101	=	324