Erbijsommen met vlekken tot en met 1.000

Erbijsommen

Oefening 1
1.	389	+		=	742
2.	497	+		=	876
3.	480	+		=	681
4.	425	+		=	816
5.	407	+		=	539
6.	459	+		=	869
7.	443	+		=	659
8.	425	+		=	839
9.	492	+		=	784
10.	387	+		=	655

Oefening 2
1.	321	+		=	479
2.	495	+		=	960
3.	483	+		=	677
4.	316	+		=	456
5.	461	+		=	566
6.	135	+		=	236
7.	308	+		=	511
8.	252	+		=	472
9.	166	+		=	278
10.	437	+		=	835

Oefening 3
1.	351	+		=	681
2.	346	+		=	688
3.	456	+		=	634
4.	420	+		=	532
5.	189	+		=	362
6.	387	+		=	736
7.	487	+		=	876
8.	494	+		=	960
9.	487	+		=	799
10.	495	+		=	841

Oefening 4
1.	444	+		=	774
2.	495	+		=	838
3.	406	+		=	647
4.	478	+		=	705
5.	487	+		=	853
6.	328	+		=	603
7.	493	+		=	640
8.	399	+		=	736
9.	348	+		=	615
10.	347	+		=	456

Erbijsommen met vlekken tot en met 1.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	389	+	353	=	742
2.	497	+	379	=	876
3.	480	+	201	=	681
4.	425	+	391	=	816
5.	407	+	132	=	539
6.	459	+	410	=	869
7.	443	+	216	=	659
8.	425	+	414	=	839
9.	492	+	292	=	784
10.	387	+	268	=	655

Oefening 2
1.	321	+	158	=	479
2.	495	+	465	=	960
3.	483	+	194	=	677
4.	316	+	140	=	456
5.	461	+	105	=	566
6.	135	+	101	=	236
7.	308	+	203	=	511
8.	252	+	220	=	472
9.	166	+	112	=	278
10.	437	+	398	=	835

Oefening 3
1.	351	+	330	=	681
2.	346	+	342	=	688
3.	456	+	178	=	634
4.	420	+	112	=	532
5.	189	+	173	=	362
6.	387	+	349	=	736
7.	487	+	389	=	876
8.	494	+	466	=	960
9.	487	+	312	=	799
10.	495	+	346	=	841

Oefening 4
1.	444	+	330	=	774
2.	495	+	343	=	838
3.	406	+	241	=	647
4.	478	+	227	=	705
5.	487	+	366	=	853
6.	328	+	275	=	603
7.	493	+	147	=	640
8.	399	+	337	=	736
9.	348	+	267	=	615
10.	347	+	109	=	456