Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	260	+		=	490
2.	839	+		=	1.066
3.	883	+		=	1.504
4.	721	+		=	1.303
5.	752	+		=	1.409
6.	559	+		=	766
7.	475	+		=	817
8.	643	+		=	995
9.	526	+		=	805
10.	970	+		=	1.373

Oefening 2
1.	754	+		=	1.337
2.	327	+		=	641
3.	838	+		=	1.365
4.	829	+		=	1.416
5.	687	+		=	972
6.	579	+		=	823
7.	691	+		=	1.106
8.	986	+		=	1.239
9.	823	+		=	1.315
10.	579	+		=	995

Oefening 3
1.	935	+		=	1.692
2.	864	+		=	1.666
3.	931	+		=	1.558
4.	884	+		=	1.147
5.	650	+		=	1.003
6.	546	+		=	979
7.	644	+		=	1.109
8.	906	+		=	1.152
9.	387	+		=	765
10.	846	+		=	1.504

Oefening 4
1.	516	+		=	880
2.	666	+		=	1.065
3.	929	+		=	1.152
4.	951	+		=	1.330
5.	796	+		=	1.125
6.	527	+		=	835
7.	785	+		=	1.281
8.	879	+		=	1.394
9.	488	+		=	771
10.	936	+		=	1.479

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	260	+	230	=	490
2.	839	+	227	=	1.066
3.	883	+	621	=	1.504
4.	721	+	582	=	1.303
5.	752	+	657	=	1.409
6.	559	+	207	=	766
7.	475	+	342	=	817
8.	643	+	352	=	995
9.	526	+	279	=	805
10.	970	+	403	=	1.373

Oefening 2
1.	754	+	583	=	1.337
2.	327	+	314	=	641
3.	838	+	527	=	1.365
4.	829	+	587	=	1.416
5.	687	+	285	=	972
6.	579	+	244	=	823
7.	691	+	415	=	1.106
8.	986	+	253	=	1.239
9.	823	+	492	=	1.315
10.	579	+	416	=	995

Oefening 3
1.	935	+	757	=	1.692
2.	864	+	802	=	1.666
3.	931	+	627	=	1.558
4.	884	+	263	=	1.147
5.	650	+	353	=	1.003
6.	546	+	433	=	979
7.	644	+	465	=	1.109
8.	906	+	246	=	1.152
9.	387	+	378	=	765
10.	846	+	658	=	1.504

Oefening 4
1.	516	+	364	=	880
2.	666	+	399	=	1.065
3.	929	+	223	=	1.152
4.	951	+	379	=	1.330
5.	796	+	329	=	1.125
6.	527	+	308	=	835
7.	785	+	496	=	1.281
8.	879	+	515	=	1.394
9.	488	+	283	=	771
10.	936	+	543	=	1.479