Erbijsommen met vlekken tot en met 1.000

Erbijsommen

Oefening 1
1.	207	+		=	343
2.	470	+		=	930
3.	313	+		=	588
4.	235	+		=	381
5.	420	+		=	574
6.	437	+		=	760
7.	400	+		=	690
8.	380	+		=	663
9.	388	+		=	526
10.	439	+		=	671

Oefening 2
1.	462	+		=	865
2.	431	+		=	827
3.	331	+		=	512
4.	456	+		=	614
5.	305	+		=	486
6.	237	+		=	453
7.	491	+		=	793
8.	292	+		=	396
9.	410	+		=	550
10.	476	+		=	807

Oefening 3
1.	181	+		=	308
2.	387	+		=	584
3.	317	+		=	612
4.	231	+		=	401
5.	453	+		=	776
6.	419	+		=	549
7.	455	+		=	625
8.	444	+		=	599
9.	297	+		=	540
10.	312	+		=	500

Oefening 4
1.	300	+		=	437
2.	421	+		=	646
3.	332	+		=	663
4.	412	+		=	674
5.	465	+		=	921
6.	484	+		=	608
7.	380	+		=	709
8.	455	+		=	809
9.	465	+		=	774
10.	476	+		=	731

Erbijsommen met vlekken tot en met 1.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	207	+	136	=	343
2.	470	+	460	=	930
3.	313	+	275	=	588
4.	235	+	146	=	381
5.	420	+	154	=	574
6.	437	+	323	=	760
7.	400	+	290	=	690
8.	380	+	283	=	663
9.	388	+	138	=	526
10.	439	+	232	=	671

Oefening 2
1.	462	+	403	=	865
2.	431	+	396	=	827
3.	331	+	181	=	512
4.	456	+	158	=	614
5.	305	+	181	=	486
6.	237	+	216	=	453
7.	491	+	302	=	793
8.	292	+	104	=	396
9.	410	+	140	=	550
10.	476	+	331	=	807

Oefening 3
1.	181	+	127	=	308
2.	387	+	197	=	584
3.	317	+	295	=	612
4.	231	+	170	=	401
5.	453	+	323	=	776
6.	419	+	130	=	549
7.	455	+	170	=	625
8.	444	+	155	=	599
9.	297	+	243	=	540
10.	312	+	188	=	500

Oefening 4
1.	300	+	137	=	437
2.	421	+	225	=	646
3.	332	+	331	=	663
4.	412	+	262	=	674
5.	465	+	456	=	921
6.	484	+	124	=	608
7.	380	+	329	=	709
8.	455	+	354	=	809
9.	465	+	309	=	774
10.	476	+	255	=	731