Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	900	+		=	1.157
2.	561	+		=	787
3.	613	+		=	1.157
4.	710	+		=	1.245
5.	615	+		=	835
6.	639	+		=	1.177
7.	619	+		=	1.109
8.	454	+		=	711
9.	498	+		=	825
10.	907	+		=	1.302

Oefening 2
1.	221	+		=	428
2.	783	+		=	1.369
3.	492	+		=	974
4.	642	+		=	1.189
5.	517	+		=	851
6.	606	+		=	973
7.	964	+		=	1.404
8.	288	+		=	515
9.	764	+		=	1.096
10.	511	+		=	927

Oefening 3
1.	332	+		=	630
2.	366	+		=	718
3.	778	+		=	1.018
4.	503	+		=	889
5.	893	+		=	1.349
6.	563	+		=	1.001
7.	995	+		=	1.665
8.	863	+		=	1.653
9.	634	+		=	901
10.	455	+		=	760

Oefening 4
1.	860	+		=	1.397
2.	953	+		=	1.528
3.	545	+		=	758
4.	851	+		=	1.508
5.	619	+		=	827
6.	729	+		=	1.142
7.	606	+		=	868
8.	518	+		=	846
9.	967	+		=	1.275
10.	828	+		=	1.653

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	900	+	257	=	1.157
2.	561	+	226	=	787
3.	613	+	544	=	1.157
4.	710	+	535	=	1.245
5.	615	+	220	=	835
6.	639	+	538	=	1.177
7.	619	+	490	=	1.109
8.	454	+	257	=	711
9.	498	+	327	=	825
10.	907	+	395	=	1.302

Oefening 2
1.	221	+	207	=	428
2.	783	+	586	=	1.369
3.	492	+	482	=	974
4.	642	+	547	=	1.189
5.	517	+	334	=	851
6.	606	+	367	=	973
7.	964	+	440	=	1.404
8.	288	+	227	=	515
9.	764	+	332	=	1.096
10.	511	+	416	=	927

Oefening 3
1.	332	+	298	=	630
2.	366	+	352	=	718
3.	778	+	240	=	1.018
4.	503	+	386	=	889
5.	893	+	456	=	1.349
6.	563	+	438	=	1.001
7.	995	+	670	=	1.665
8.	863	+	790	=	1.653
9.	634	+	267	=	901
10.	455	+	305	=	760

Oefening 4
1.	860	+	537	=	1.397
2.	953	+	575	=	1.528
3.	545	+	213	=	758
4.	851	+	657	=	1.508
5.	619	+	208	=	827
6.	729	+	413	=	1.142
7.	606	+	262	=	868
8.	518	+	328	=	846
9.	967	+	308	=	1.275
10.	828	+	825	=	1.653