Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	688	+		=	977
2.	955	+		=	1.820
3.	912	+		=	1.183
4.	942	+		=	1.699
5.	667	+		=	993
6.	844	+		=	1.629
7.	990	+		=	1.460
8.	495	+		=	779
9.	873	+		=	1.079
10.	813	+		=	1.577

Oefening 2
1.	648	+		=	977
2.	990	+		=	1.853
3.	281	+		=	518
4.	693	+		=	1.317
5.	778	+		=	1.203
6.	888	+		=	1.521
7.	828	+		=	1.216
8.	553	+		=	817
9.	790	+		=	1.305
10.	970	+		=	1.241

Oefening 3
1.	330	+		=	653
2.	918	+		=	1.209
3.	975	+		=	1.512
4.	590	+		=	1.178
5.	873	+		=	1.462
6.	916	+		=	1.527
7.	485	+		=	685
8.	641	+		=	904
9.	924	+		=	1.736
10.	976	+		=	1.875

Oefening 4
1.	547	+		=	916
2.	685	+		=	995
3.	398	+		=	653
4.	564	+		=	976
5.	735	+		=	1.381
6.	932	+		=	1.769
7.	484	+		=	722
8.	681	+		=	1.335
9.	519	+		=	781
10.	759	+		=	1.390

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	688	+	289	=	977
2.	955	+	865	=	1.820
3.	912	+	271	=	1.183
4.	942	+	757	=	1.699
5.	667	+	326	=	993
6.	844	+	785	=	1.629
7.	990	+	470	=	1.460
8.	495	+	284	=	779
9.	873	+	206	=	1.079
10.	813	+	764	=	1.577

Oefening 2
1.	648	+	329	=	977
2.	990	+	863	=	1.853
3.	281	+	237	=	518
4.	693	+	624	=	1.317
5.	778	+	425	=	1.203
6.	888	+	633	=	1.521
7.	828	+	388	=	1.216
8.	553	+	264	=	817
9.	790	+	515	=	1.305
10.	970	+	271	=	1.241

Oefening 3
1.	330	+	323	=	653
2.	918	+	291	=	1.209
3.	975	+	537	=	1.512
4.	590	+	588	=	1.178
5.	873	+	589	=	1.462
6.	916	+	611	=	1.527
7.	485	+	200	=	685
8.	641	+	263	=	904
9.	924	+	812	=	1.736
10.	976	+	899	=	1.875

Oefening 4
1.	547	+	369	=	916
2.	685	+	310	=	995
3.	398	+	255	=	653
4.	564	+	412	=	976
5.	735	+	646	=	1.381
6.	932	+	837	=	1.769
7.	484	+	238	=	722
8.	681	+	654	=	1.335
9.	519	+	262	=	781
10.	759	+	631	=	1.390