Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	607	+		=	1.019
2.	766	+		=	1.045
3.	876	+		=	1.276
4.	509	+		=	859
5.	917	+		=	1.482
6.	778	+		=	1.197
7.	819	+		=	1.275
8.	857	+		=	1.271
9.	809	+		=	1.143
10.	678	+		=	1.122

Oefening 2
1.	628	+		=	892
2.	613	+		=	1.182
3.	727	+		=	1.289
4.	761	+		=	973
5.	540	+		=	884
6.	402	+		=	664
7.	940	+		=	1.464
8.	247	+		=	462
9.	732	+		=	983
10.	817	+		=	1.630

Oefening 3
1.	640	+		=	989
2.	427	+		=	644
3.	394	+		=	730
4.	738	+		=	953
5.	477	+		=	855
6.	544	+		=	874
7.	523	+		=	842
8.	854	+		=	1.439
9.	783	+		=	1.145
10.	923	+		=	1.525

Oefening 4
1.	747	+		=	950
2.	636	+		=	1.198
3.	849	+		=	1.211
4.	735	+		=	1.466
5.	437	+		=	641
6.	928	+		=	1.688
7.	908	+		=	1.559
8.	449	+		=	853
9.	791	+		=	1.349
10.	784	+		=	1.130

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	607	+	412	=	1.019
2.	766	+	279	=	1.045
3.	876	+	400	=	1.276
4.	509	+	350	=	859
5.	917	+	565	=	1.482
6.	778	+	419	=	1.197
7.	819	+	456	=	1.275
8.	857	+	414	=	1.271
9.	809	+	334	=	1.143
10.	678	+	444	=	1.122

Oefening 2
1.	628	+	264	=	892
2.	613	+	569	=	1.182
3.	727	+	562	=	1.289
4.	761	+	212	=	973
5.	540	+	344	=	884
6.	402	+	262	=	664
7.	940	+	524	=	1.464
8.	247	+	215	=	462
9.	732	+	251	=	983
10.	817	+	813	=	1.630

Oefening 3
1.	640	+	349	=	989
2.	427	+	217	=	644
3.	394	+	336	=	730
4.	738	+	215	=	953
5.	477	+	378	=	855
6.	544	+	330	=	874
7.	523	+	319	=	842
8.	854	+	585	=	1.439
9.	783	+	362	=	1.145
10.	923	+	602	=	1.525

Oefening 4
1.	747	+	203	=	950
2.	636	+	562	=	1.198
3.	849	+	362	=	1.211
4.	735	+	731	=	1.466
5.	437	+	204	=	641
6.	928	+	760	=	1.688
7.	908	+	651	=	1.559
8.	449	+	404	=	853
9.	791	+	558	=	1.349
10.	784	+	346	=	1.130