Erbijsommen met vlekken tot en met 1.000

Erbijsommen

Oefening 1
1.	238	+		=	465
2.	294	+		=	479
3.	327	+		=	601
4.	421	+		=	702
5.	416	+		=	774
6.	372	+		=	642
7.	461	+		=	883
8.	370	+		=	479
9.	176	+		=	344
10.	308	+		=	594

Oefening 2
1.	280	+		=	439
2.	172	+		=	313
3.	487	+		=	920
4.	213	+		=	344
5.	346	+		=	543
6.	495	+		=	951
7.	402	+		=	611
8.	452	+		=	614
9.	201	+		=	317
10.	402	+		=	693

Oefening 3
1.	447	+		=	632
2.	447	+		=	731
3.	366	+		=	728
4.	287	+		=	511
5.	202	+		=	339
6.	435	+		=	621
7.	431	+		=	571
8.	254	+		=	428
9.	411	+		=	548
10.	399	+		=	667

Oefening 4
1.	276	+		=	406
2.	267	+		=	496
3.	409	+		=	550
4.	457	+		=	839
5.	189	+		=	337
6.	307	+		=	604
7.	491	+		=	655
8.	408	+		=	591
9.	267	+		=	413
10.	399	+		=	539

Erbijsommen met vlekken tot en met 1.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	238	+	227	=	465
2.	294	+	185	=	479
3.	327	+	274	=	601
4.	421	+	281	=	702
5.	416	+	358	=	774
6.	372	+	270	=	642
7.	461	+	422	=	883
8.	370	+	109	=	479
9.	176	+	168	=	344
10.	308	+	286	=	594

Oefening 2
1.	280	+	159	=	439
2.	172	+	141	=	313
3.	487	+	433	=	920
4.	213	+	131	=	344
5.	346	+	197	=	543
6.	495	+	456	=	951
7.	402	+	209	=	611
8.	452	+	162	=	614
9.	201	+	116	=	317
10.	402	+	291	=	693

Oefening 3
1.	447	+	185	=	632
2.	447	+	284	=	731
3.	366	+	362	=	728
4.	287	+	224	=	511
5.	202	+	137	=	339
6.	435	+	186	=	621
7.	431	+	140	=	571
8.	254	+	174	=	428
9.	411	+	137	=	548
10.	399	+	268	=	667

Oefening 4
1.	276	+	130	=	406
2.	267	+	229	=	496
3.	409	+	141	=	550
4.	457	+	382	=	839
5.	189	+	148	=	337
6.	307	+	297	=	604
7.	491	+	164	=	655
8.	408	+	183	=	591
9.	267	+	146	=	413
10.	399	+	140	=	539