Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	454	+		=	886
2.	997	+		=	1.611
3.	768	+		=	1.300
4.	637	+		=	1.045
5.	703	+		=	1.289
6.	644	+		=	929
7.	505	+		=	958
8.	885	+		=	1.223
9.	370	+		=	664
10.	896	+		=	1.366

Oefening 2
1.	430	+		=	689
2.	542	+		=	892
3.	750	+		=	1.335
4.	872	+		=	1.557
5.	637	+		=	1.148
6.	942	+		=	1.382
7.	901	+		=	1.699
8.	912	+		=	1.788
9.	667	+		=	965
10.	982	+		=	1.277

Oefening 3
1.	582	+		=	1.093
2.	552	+		=	1.039
3.	729	+		=	1.226
4.	697	+		=	1.368
5.	915	+		=	1.200
6.	515	+		=	934
7.	873	+		=	1.135
8.	563	+		=	838
9.	437	+		=	637
10.	960	+		=	1.386

Oefening 4
1.	883	+		=	1.734
2.	285	+		=	515
3.	866	+		=	1.587
4.	533	+		=	818
5.	796	+		=	1.574
6.	597	+		=	886
7.	572	+		=	1.118
8.	552	+		=	934
9.	869	+		=	1.273
10.	582	+		=	867

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	454	+	432	=	886
2.	997	+	614	=	1.611
3.	768	+	532	=	1.300
4.	637	+	408	=	1.045
5.	703	+	586	=	1.289
6.	644	+	285	=	929
7.	505	+	453	=	958
8.	885	+	338	=	1.223
9.	370	+	294	=	664
10.	896	+	470	=	1.366

Oefening 2
1.	430	+	259	=	689
2.	542	+	350	=	892
3.	750	+	585	=	1.335
4.	872	+	685	=	1.557
5.	637	+	511	=	1.148
6.	942	+	440	=	1.382
7.	901	+	798	=	1.699
8.	912	+	876	=	1.788
9.	667	+	298	=	965
10.	982	+	295	=	1.277

Oefening 3
1.	582	+	511	=	1.093
2.	552	+	487	=	1.039
3.	729	+	497	=	1.226
4.	697	+	671	=	1.368
5.	915	+	285	=	1.200
6.	515	+	419	=	934
7.	873	+	262	=	1.135
8.	563	+	275	=	838
9.	437	+	200	=	637
10.	960	+	426	=	1.386

Oefening 4
1.	883	+	851	=	1.734
2.	285	+	230	=	515
3.	866	+	721	=	1.587
4.	533	+	285	=	818
5.	796	+	778	=	1.574
6.	597	+	289	=	886
7.	572	+	546	=	1.118
8.	552	+	382	=	934
9.	869	+	404	=	1.273
10.	582	+	285	=	867