Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	602	+		=	921
2.	663	+		=	1.166
3.	518	+		=	1.011
4.	988	+		=	1.395
5.	771	+		=	1.288
6.	903	+		=	1.178
7.	666	+		=	950
8.	647	+		=	1.058
9.	558	+		=	935
10.	956	+		=	1.325

Oefening 2
1.	489	+		=	948
2.	932	+		=	1.445
3.	535	+		=	842
4.	731	+		=	1.098
5.	913	+		=	1.585
6.	823	+		=	1.333
7.	393	+		=	605
8.	601	+		=	1.112
9.	488	+		=	884
10.	456	+		=	828

Oefening 3
1.	335	+		=	562
2.	844	+		=	1.154
3.	464	+		=	771
4.	743	+		=	980
5.	665	+		=	946
6.	996	+		=	1.763
7.	613	+		=	926
8.	913	+		=	1.602
9.	483	+		=	708
10.	395	+		=	676

Oefening 4
1.	323	+		=	630
2.	884	+		=	1.397
3.	737	+		=	1.441
4.	802	+		=	1.014
5.	939	+		=	1.338
6.	882	+		=	1.646
7.	988	+		=	1.447
8.	827	+		=	1.194
9.	699	+		=	1.381
10.	670	+		=	1.261

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	602	+	319	=	921
2.	663	+	503	=	1.166
3.	518	+	493	=	1.011
4.	988	+	407	=	1.395
5.	771	+	517	=	1.288
6.	903	+	275	=	1.178
7.	666	+	284	=	950
8.	647	+	411	=	1.058
9.	558	+	377	=	935
10.	956	+	369	=	1.325

Oefening 2
1.	489	+	459	=	948
2.	932	+	513	=	1.445
3.	535	+	307	=	842
4.	731	+	367	=	1.098
5.	913	+	672	=	1.585
6.	823	+	510	=	1.333
7.	393	+	212	=	605
8.	601	+	511	=	1.112
9.	488	+	396	=	884
10.	456	+	372	=	828

Oefening 3
1.	335	+	227	=	562
2.	844	+	310	=	1.154
3.	464	+	307	=	771
4.	743	+	237	=	980
5.	665	+	281	=	946
6.	996	+	767	=	1.763
7.	613	+	313	=	926
8.	913	+	689	=	1.602
9.	483	+	225	=	708
10.	395	+	281	=	676

Oefening 4
1.	323	+	307	=	630
2.	884	+	513	=	1.397
3.	737	+	704	=	1.441
4.	802	+	212	=	1.014
5.	939	+	399	=	1.338
6.	882	+	764	=	1.646
7.	988	+	459	=	1.447
8.	827	+	367	=	1.194
9.	699	+	682	=	1.381
10.	670	+	591	=	1.261