Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	278	+		=	494
2.	891	+		=	1.359
3.	242	+		=	449
4.	587	+		=	810
5.	764	+		=	1.306
6.	872	+		=	1.320
7.	453	+		=	882
8.	547	+		=	853
9.	729	+		=	1.238
10.	539	+		=	755

Oefening 2
1.	661	+		=	1.103
2.	869	+		=	1.259
3.	868	+		=	1.319
4.	761	+		=	968
5.	699	+		=	1.035
6.	825	+		=	1.108
7.	734	+		=	1.221
8.	900	+		=	1.742
9.	539	+		=	1.026
10.	962	+		=	1.432

Oefening 3
1.	868	+		=	1.223
2.	968	+		=	1.699
3.	646	+		=	1.113
4.	743	+		=	1.098
5.	509	+		=	851
6.	716	+		=	989
7.	479	+		=	714
8.	942	+		=	1.363
9.	961	+		=	1.385
10.	410	+		=	785

Oefening 4
1.	528	+		=	737
2.	657	+		=	1.092
3.	963	+		=	1.547
4.	527	+		=	894
5.	697	+		=	1.382
6.	398	+		=	730
7.	471	+		=	903
8.	859	+		=	1.156
9.	682	+		=	1.189
10.	930	+		=	1.171

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	278	+	216	=	494
2.	891	+	468	=	1.359
3.	242	+	207	=	449
4.	587	+	223	=	810
5.	764	+	542	=	1.306
6.	872	+	448	=	1.320
7.	453	+	429	=	882
8.	547	+	306	=	853
9.	729	+	509	=	1.238
10.	539	+	216	=	755

Oefening 2
1.	661	+	442	=	1.103
2.	869	+	390	=	1.259
3.	868	+	451	=	1.319
4.	761	+	207	=	968
5.	699	+	336	=	1.035
6.	825	+	283	=	1.108
7.	734	+	487	=	1.221
8.	900	+	842	=	1.742
9.	539	+	487	=	1.026
10.	962	+	470	=	1.432

Oefening 3
1.	868	+	355	=	1.223
2.	968	+	731	=	1.699
3.	646	+	467	=	1.113
4.	743	+	355	=	1.098
5.	509	+	342	=	851
6.	716	+	273	=	989
7.	479	+	235	=	714
8.	942	+	421	=	1.363
9.	961	+	424	=	1.385
10.	410	+	375	=	785

Oefening 4
1.	528	+	209	=	737
2.	657	+	435	=	1.092
3.	963	+	584	=	1.547
4.	527	+	367	=	894
5.	697	+	685	=	1.382
6.	398	+	332	=	730
7.	471	+	432	=	903
8.	859	+	297	=	1.156
9.	682	+	507	=	1.189
10.	930	+	241	=	1.171