Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	987	+		=	1.189
2.	433	+		=	813
3.	842	+		=	1.092
4.	648	+		=	1.089
5.	674	+		=	903
6.	799	+		=	1.541
7.	956	+		=	1.237
8.	661	+		=	1.279
9.	997	+		=	1.801
10.	685	+		=	1.007

Oefening 2
1.	278	+		=	519
2.	350	+		=	657
3.	987	+		=	1.290
4.	709	+		=	1.397
5.	426	+		=	799
6.	744	+		=	1.329
7.	939	+		=	1.758
8.	999	+		=	1.914
9.	341	+		=	659
10.	935	+		=	1.183

Oefening 3
1.	838	+		=	1.519
2.	837	+		=	1.364
3.	839	+		=	1.328
4.	680	+		=	1.067
5.	599	+		=	1.020
6.	882	+		=	1.452
7.	880	+		=	1.450
8.	311	+		=	519
9.	948	+		=	1.646
10.	673	+		=	971

Oefening 4
1.	990	+		=	1.666
2.	788	+		=	1.198
3.	761	+		=	1.447
4.	961	+		=	1.905
5.	822	+		=	1.151
6.	950	+		=	1.535
7.	911	+		=	1.208
8.	783	+		=	1.131
9.	774	+		=	1.129
10.	941	+		=	1.870

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	987	+	202	=	1.189
2.	433	+	380	=	813
3.	842	+	250	=	1.092
4.	648	+	441	=	1.089
5.	674	+	229	=	903
6.	799	+	742	=	1.541
7.	956	+	281	=	1.237
8.	661	+	618	=	1.279
9.	997	+	804	=	1.801
10.	685	+	322	=	1.007

Oefening 2
1.	278	+	241	=	519
2.	350	+	307	=	657
3.	987	+	303	=	1.290
4.	709	+	688	=	1.397
5.	426	+	373	=	799
6.	744	+	585	=	1.329
7.	939	+	819	=	1.758
8.	999	+	915	=	1.914
9.	341	+	318	=	659
10.	935	+	248	=	1.183

Oefening 3
1.	838	+	681	=	1.519
2.	837	+	527	=	1.364
3.	839	+	489	=	1.328
4.	680	+	387	=	1.067
5.	599	+	421	=	1.020
6.	882	+	570	=	1.452
7.	880	+	570	=	1.450
8.	311	+	208	=	519
9.	948	+	698	=	1.646
10.	673	+	298	=	971

Oefening 4
1.	990	+	676	=	1.666
2.	788	+	410	=	1.198
3.	761	+	686	=	1.447
4.	961	+	944	=	1.905
5.	822	+	329	=	1.151
6.	950	+	585	=	1.535
7.	911	+	297	=	1.208
8.	783	+	348	=	1.131
9.	774	+	355	=	1.129
10.	941	+	929	=	1.870