Erbijsommen met vlekken tot en met 1.000

Erbijsommen

Oefening 1
1.	277	+		=	486
2.	300	+		=	472
3.	401	+		=	643
4.	351	+		=	671
5.	447	+		=	880
6.	141	+		=	252
7.	261	+		=	397
8.	347	+		=	510
9.	342	+		=	560
10.	321	+		=	508

Oefening 2
1.	184	+		=	357
2.	173	+		=	330
3.	323	+		=	546
4.	298	+		=	559
5.	372	+		=	527
6.	422	+		=	647
7.	462	+		=	598
8.	292	+		=	568
9.	491	+		=	640
10.	482	+		=	746

Oefening 3
1.	432	+		=	622
2.	449	+		=	599
3.	447	+		=	579
4.	205	+		=	353
5.	242	+		=	357
6.	459	+		=	884
7.	435	+		=	848
8.	385	+		=	647
9.	357	+		=	484
10.	377	+		=	659

Oefening 4
1.	483	+		=	833
2.	230	+		=	433
3.	472	+		=	852
4.	261	+		=	436
5.	440	+		=	601
6.	468	+		=	692
7.	379	+		=	726
8.	409	+		=	762
9.	403	+		=	765
10.	410	+		=	645

Erbijsommen met vlekken tot en met 1.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	277	+	209	=	486
2.	300	+	172	=	472
3.	401	+	242	=	643
4.	351	+	320	=	671
5.	447	+	433	=	880
6.	141	+	111	=	252
7.	261	+	136	=	397
8.	347	+	163	=	510
9.	342	+	218	=	560
10.	321	+	187	=	508

Oefening 2
1.	184	+	173	=	357
2.	173	+	157	=	330
3.	323	+	223	=	546
4.	298	+	261	=	559
5.	372	+	155	=	527
6.	422	+	225	=	647
7.	462	+	136	=	598
8.	292	+	276	=	568
9.	491	+	149	=	640
10.	482	+	264	=	746

Oefening 3
1.	432	+	190	=	622
2.	449	+	150	=	599
3.	447	+	132	=	579
4.	205	+	148	=	353
5.	242	+	115	=	357
6.	459	+	425	=	884
7.	435	+	413	=	848
8.	385	+	262	=	647
9.	357	+	127	=	484
10.	377	+	282	=	659

Oefening 4
1.	483	+	350	=	833
2.	230	+	203	=	433
3.	472	+	380	=	852
4.	261	+	175	=	436
5.	440	+	161	=	601
6.	468	+	224	=	692
7.	379	+	347	=	726
8.	409	+	353	=	762
9.	403	+	362	=	765
10.	410	+	235	=	645