Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	469	+		=	878
2.	646	+		=	986
3.	711	+		=	1.082
4.	471	+		=	792
5.	740	+		=	1.302
6.	888	+		=	1.513
7.	678	+		=	903
8.	575	+		=	812
9.	715	+		=	958
10.	882	+		=	1.205

Oefening 2
1.	384	+		=	697
2.	520	+		=	867
3.	886	+		=	1.287
4.	611	+		=	814
5.	668	+		=	950
6.	653	+		=	891
7.	973	+		=	1.447
8.	967	+		=	1.549
9.	852	+		=	1.167
10.	783	+		=	1.047

Oefening 3
1.	765	+		=	1.095
2.	643	+		=	1.267
3.	222	+		=	422
4.	364	+		=	619
5.	510	+		=	916
6.	779	+		=	1.310
7.	956	+		=	1.206
8.	829	+		=	1.495
9.	708	+		=	1.032
10.	623	+		=	1.185

Oefening 4
1.	705	+		=	1.353
2.	776	+		=	1.457
3.	884	+		=	1.133
4.	992	+		=	1.884
5.	862	+		=	1.707
6.	981	+		=	1.867
7.	798	+		=	1.289
8.	981	+		=	1.889
9.	877	+		=	1.578
10.	974	+		=	1.759

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	469	+	409	=	878
2.	646	+	340	=	986
3.	711	+	371	=	1.082
4.	471	+	321	=	792
5.	740	+	562	=	1.302
6.	888	+	625	=	1.513
7.	678	+	225	=	903
8.	575	+	237	=	812
9.	715	+	243	=	958
10.	882	+	323	=	1.205

Oefening 2
1.	384	+	313	=	697
2.	520	+	347	=	867
3.	886	+	401	=	1.287
4.	611	+	203	=	814
5.	668	+	282	=	950
6.	653	+	238	=	891
7.	973	+	474	=	1.447
8.	967	+	582	=	1.549
9.	852	+	315	=	1.167
10.	783	+	264	=	1.047

Oefening 3
1.	765	+	330	=	1.095
2.	643	+	624	=	1.267
3.	222	+	200	=	422
4.	364	+	255	=	619
5.	510	+	406	=	916
6.	779	+	531	=	1.310
7.	956	+	250	=	1.206
8.	829	+	666	=	1.495
9.	708	+	324	=	1.032
10.	623	+	562	=	1.185

Oefening 4
1.	705	+	648	=	1.353
2.	776	+	681	=	1.457
3.	884	+	249	=	1.133
4.	992	+	892	=	1.884
5.	862	+	845	=	1.707
6.	981	+	886	=	1.867
7.	798	+	491	=	1.289
8.	981	+	908	=	1.889
9.	877	+	701	=	1.578
10.	974	+	785	=	1.759