Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	481	+		=	906
2.	939	+		=	1.684
3.	873	+		=	1.708
4.	794	+		=	1.349
5.	803	+		=	1.400
6.	883	+		=	1.540
7.	849	+		=	1.227
8.	958	+		=	1.368
9.	613	+		=	964
10.	835	+		=	1.401

Oefening 2
1.	946	+		=	1.815
2.	684	+		=	1.257
3.	425	+		=	772
4.	986	+		=	1.862
5.	883	+		=	1.511
6.	761	+		=	1.214
7.	701	+		=	1.286
8.	650	+		=	1.238
9.	995	+		=	1.930
10.	592	+		=	937

Oefening 3
1.	644	+		=	1.143
2.	581	+		=	1.149
3.	817	+		=	1.283
4.	720	+		=	1.176
5.	917	+		=	1.601
6.	878	+		=	1.479
7.	818	+		=	1.579
8.	778	+		=	1.452
9.	979	+		=	1.461
10.	547	+		=	953

Oefening 4
1.	976	+		=	1.695
2.	366	+		=	640
3.	988	+		=	1.658
4.	731	+		=	1.285
5.	783	+		=	1.394
6.	981	+		=	1.698
7.	587	+		=	919
8.	668	+		=	1.013
9.	260	+		=	462
10.	880	+		=	1.637

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	481	+	425	=	906
2.	939	+	745	=	1.684
3.	873	+	835	=	1.708
4.	794	+	555	=	1.349
5.	803	+	597	=	1.400
6.	883	+	657	=	1.540
7.	849	+	378	=	1.227
8.	958	+	410	=	1.368
9.	613	+	351	=	964
10.	835	+	566	=	1.401

Oefening 2
1.	946	+	869	=	1.815
2.	684	+	573	=	1.257
3.	425	+	347	=	772
4.	986	+	876	=	1.862
5.	883	+	628	=	1.511
6.	761	+	453	=	1.214
7.	701	+	585	=	1.286
8.	650	+	588	=	1.238
9.	995	+	935	=	1.930
10.	592	+	345	=	937

Oefening 3
1.	644	+	499	=	1.143
2.	581	+	568	=	1.149
3.	817	+	466	=	1.283
4.	720	+	456	=	1.176
5.	917	+	684	=	1.601
6.	878	+	601	=	1.479
7.	818	+	761	=	1.579
8.	778	+	674	=	1.452
9.	979	+	482	=	1.461
10.	547	+	406	=	953

Oefening 4
1.	976	+	719	=	1.695
2.	366	+	274	=	640
3.	988	+	670	=	1.658
4.	731	+	554	=	1.285
5.	783	+	611	=	1.394
6.	981	+	717	=	1.698
7.	587	+	332	=	919
8.	668	+	345	=	1.013
9.	260	+	202	=	462
10.	880	+	757	=	1.637