Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	281	+		=	515
2.	613	+		=	1.130
3.	618	+		=	1.103
4.	736	+		=	1.177
5.	555	+		=	1.051
6.	230	+		=	451
7.	259	+		=	490
8.	740	+		=	973
9.	859	+		=	1.306
10.	984	+		=	1.848

Oefening 2
1.	749	+		=	1.009
2.	876	+		=	1.161
3.	941	+		=	1.667
4.	894	+		=	1.385
5.	657	+		=	1.281
6.	812	+		=	1.624
7.	934	+		=	1.825
8.	491	+		=	842
9.	637	+		=	1.194
10.	904	+		=	1.763

Oefening 3
1.	519	+		=	728
2.	594	+		=	1.079
3.	889	+		=	1.276
4.	815	+		=	1.555
5.	889	+		=	1.602
6.	710	+		=	1.089
7.	515	+		=	925
8.	280	+		=	557
9.	723	+		=	1.183
10.	740	+		=	1.223

Oefening 4
1.	965	+		=	1.664
2.	902	+		=	1.549
3.	630	+		=	1.142
4.	919	+		=	1.442
5.	898	+		=	1.702
6.	883	+		=	1.755
7.	972	+		=	1.461
8.	881	+		=	1.405
9.	417	+		=	753
10.	566	+		=	953

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	281	+	234	=	515
2.	613	+	517	=	1.130
3.	618	+	485	=	1.103
4.	736	+	441	=	1.177
5.	555	+	496	=	1.051
6.	230	+	221	=	451
7.	259	+	231	=	490
8.	740	+	233	=	973
9.	859	+	447	=	1.306
10.	984	+	864	=	1.848

Oefening 2
1.	749	+	260	=	1.009
2.	876	+	285	=	1.161
3.	941	+	726	=	1.667
4.	894	+	491	=	1.385
5.	657	+	624	=	1.281
6.	812	+	812	=	1.624
7.	934	+	891	=	1.825
8.	491	+	351	=	842
9.	637	+	557	=	1.194
10.	904	+	859	=	1.763

Oefening 3
1.	519	+	209	=	728
2.	594	+	485	=	1.079
3.	889	+	387	=	1.276
4.	815	+	740	=	1.555
5.	889	+	713	=	1.602
6.	710	+	379	=	1.089
7.	515	+	410	=	925
8.	280	+	277	=	557
9.	723	+	460	=	1.183
10.	740	+	483	=	1.223

Oefening 4
1.	965	+	699	=	1.664
2.	902	+	647	=	1.549
3.	630	+	512	=	1.142
4.	919	+	523	=	1.442
5.	898	+	804	=	1.702
6.	883	+	872	=	1.755
7.	972	+	489	=	1.461
8.	881	+	524	=	1.405
9.	417	+	336	=	753
10.	566	+	387	=	953