Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	978	+		=	1.527
2.	689	+		=	1.276
3.	839	+		=	1.367
4.	933	+		=	1.164
5.	474	+		=	858
6.	898	+		=	1.314
7.	928	+		=	1.293
8.	656	+		=	876
9.	591	+		=	892
10.	494	+		=	936

Oefening 2
1.	878	+		=	1.340
2.	873	+		=	1.370
3.	896	+		=	1.679
4.	475	+		=	775
5.	456	+		=	861
6.	902	+		=	1.362
7.	956	+		=	1.574
8.	994	+		=	1.494
9.	774	+		=	1.168
10.	734	+		=	1.381

Oefening 3
1.	829	+		=	1.481
2.	434	+		=	778
3.	453	+		=	818
4.	814	+		=	1.180
5.	896	+		=	1.657
6.	368	+		=	586
7.	651	+		=	1.092
8.	629	+		=	986
9.	376	+		=	631
10.	549	+		=	1.074

Oefening 4
1.	985	+		=	1.765
2.	594	+		=	956
3.	528	+		=	762
4.	870	+		=	1.681
5.	595	+		=	1.033
6.	615	+		=	1.209
7.	825	+		=	1.368
8.	966	+		=	1.239
9.	661	+		=	1.059
10.	911	+		=	1.756

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	978	+	549	=	1.527
2.	689	+	587	=	1.276
3.	839	+	528	=	1.367
4.	933	+	231	=	1.164
5.	474	+	384	=	858
6.	898	+	416	=	1.314
7.	928	+	365	=	1.293
8.	656	+	220	=	876
9.	591	+	301	=	892
10.	494	+	442	=	936

Oefening 2
1.	878	+	462	=	1.340
2.	873	+	497	=	1.370
3.	896	+	783	=	1.679
4.	475	+	300	=	775
5.	456	+	405	=	861
6.	902	+	460	=	1.362
7.	956	+	618	=	1.574
8.	994	+	500	=	1.494
9.	774	+	394	=	1.168
10.	734	+	647	=	1.381

Oefening 3
1.	829	+	652	=	1.481
2.	434	+	344	=	778
3.	453	+	365	=	818
4.	814	+	366	=	1.180
5.	896	+	761	=	1.657
6.	368	+	218	=	586
7.	651	+	441	=	1.092
8.	629	+	357	=	986
9.	376	+	255	=	631
10.	549	+	525	=	1.074

Oefening 4
1.	985	+	780	=	1.765
2.	594	+	362	=	956
3.	528	+	234	=	762
4.	870	+	811	=	1.681
5.	595	+	438	=	1.033
6.	615	+	594	=	1.209
7.	825	+	543	=	1.368
8.	966	+	273	=	1.239
9.	661	+	398	=	1.059
10.	911	+	845	=	1.756