Erbijsommen met vlekken tot en met 1.000

Erbijsommen

Oefening 1
1.	393	+		=	542
2.	471	+		=	821
3.	468	+		=	613
4.	432	+		=	667
5.	301	+		=	574
6.	396	+		=	631
7.	455	+		=	789
8.	351	+		=	531
9.	492	+		=	872
10.	305	+		=	566

Oefening 2
1.	191	+		=	349
2.	155	+		=	303
3.	433	+		=	690
4.	204	+		=	335
5.	357	+		=	539
6.	422	+		=	710
7.	475	+		=	792
8.	485	+		=	926
9.	313	+		=	501
10.	374	+		=	714

Oefening 3
1.	256	+		=	505
2.	427	+		=	748
3.	468	+		=	691
4.	455	+		=	904
5.	379	+		=	721
6.	390	+		=	610
7.	483	+		=	651
8.	428	+		=	687
9.	259	+		=	507
10.	300	+		=	572

Oefening 4
1.	499	+		=	832
2.	112	+		=	221
3.	335	+		=	666
4.	182	+		=	331
5.	408	+		=	768
6.	430	+		=	615
7.	361	+		=	576
8.	160	+		=	273
9.	451	+		=	865
10.	330	+		=	505

Erbijsommen met vlekken tot en met 1.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	393	+	149	=	542
2.	471	+	350	=	821
3.	468	+	145	=	613
4.	432	+	235	=	667
5.	301	+	273	=	574
6.	396	+	235	=	631
7.	455	+	334	=	789
8.	351	+	180	=	531
9.	492	+	380	=	872
10.	305	+	261	=	566

Oefening 2
1.	191	+	158	=	349
2.	155	+	148	=	303
3.	433	+	257	=	690
4.	204	+	131	=	335
5.	357	+	182	=	539
6.	422	+	288	=	710
7.	475	+	317	=	792
8.	485	+	441	=	926
9.	313	+	188	=	501
10.	374	+	340	=	714

Oefening 3
1.	256	+	249	=	505
2.	427	+	321	=	748
3.	468	+	223	=	691
4.	455	+	449	=	904
5.	379	+	342	=	721
6.	390	+	220	=	610
7.	483	+	168	=	651
8.	428	+	259	=	687
9.	259	+	248	=	507
10.	300	+	272	=	572

Oefening 4
1.	499	+	333	=	832
2.	112	+	109	=	221
3.	335	+	331	=	666
4.	182	+	149	=	331
5.	408	+	360	=	768
6.	430	+	185	=	615
7.	361	+	215	=	576
8.	160	+	113	=	273
9.	451	+	414	=	865
10.	330	+	175	=	505