Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	610	+		=	827
2.	972	+		=	1.449
3.	563	+		=	1.064
4.	628	+		=	1.184
5.	941	+		=	1.872
6.	989	+		=	1.667
7.	893	+		=	1.455
8.	610	+		=	1.121
9.	462	+		=	675
10.	817	+		=	1.333

Oefening 2
1.	430	+		=	826
2.	585	+		=	870
3.	830	+		=	1.250
4.	971	+		=	1.281
5.	753	+		=	1.021
6.	743	+		=	1.253
7.	926	+		=	1.343
8.	606	+		=	916
9.	639	+		=	839
10.	947	+		=	1.343

Oefening 3
1.	640	+		=	913
2.	912	+		=	1.654
3.	610	+		=	999
4.	360	+		=	675
5.	387	+		=	694
6.	617	+		=	991
7.	994	+		=	1.901
8.	794	+		=	1.105
9.	890	+		=	1.643
10.	816	+		=	1.589

Oefening 4
1.	901	+		=	1.361
2.	866	+		=	1.666
3.	790	+		=	1.130
4.	771	+		=	1.190
5.	730	+		=	991
6.	992	+		=	1.669
7.	906	+		=	1.690
8.	728	+		=	1.032
9.	777	+		=	1.479
10.	986	+		=	1.251

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	610	+	217	=	827
2.	972	+	477	=	1.449
3.	563	+	501	=	1.064
4.	628	+	556	=	1.184
5.	941	+	931	=	1.872
6.	989	+	678	=	1.667
7.	893	+	562	=	1.455
8.	610	+	511	=	1.121
9.	462	+	213	=	675
10.	817	+	516	=	1.333

Oefening 2
1.	430	+	396	=	826
2.	585	+	285	=	870
3.	830	+	420	=	1.250
4.	971	+	310	=	1.281
5.	753	+	268	=	1.021
6.	743	+	510	=	1.253
7.	926	+	417	=	1.343
8.	606	+	310	=	916
9.	639	+	200	=	839
10.	947	+	396	=	1.343

Oefening 3
1.	640	+	273	=	913
2.	912	+	742	=	1.654
3.	610	+	389	=	999
4.	360	+	315	=	675
5.	387	+	307	=	694
6.	617	+	374	=	991
7.	994	+	907	=	1.901
8.	794	+	311	=	1.105
9.	890	+	753	=	1.643
10.	816	+	773	=	1.589

Oefening 4
1.	901	+	460	=	1.361
2.	866	+	800	=	1.666
3.	790	+	340	=	1.130
4.	771	+	419	=	1.190
5.	730	+	261	=	991
6.	992	+	677	=	1.669
7.	906	+	784	=	1.690
8.	728	+	304	=	1.032
9.	777	+	702	=	1.479
10.	986	+	265	=	1.251