Erbijsommen met vlekken tot en met 1.000

Erbijsommen

Oefening 1
1.	499	+		=	994
2.	230	+		=	366
3.	358	+		=	512
4.	375	+		=	582
5.	447	+		=	648
6.	430	+		=	787
7.	285	+		=	517
8.	373	+		=	533
9.	397	+		=	595
10.	453	+		=	794

Oefening 2
1.	378	+		=	698
2.	447	+		=	715
3.	448	+		=	812
4.	280	+		=	526
5.	326	+		=	494
6.	473	+		=	902
7.	218	+		=	401
8.	410	+		=	536
9.	461	+		=	801
10.	373	+		=	556

Oefening 3
1.	445	+		=	749
2.	426	+		=	679
3.	373	+		=	480
4.	353	+		=	607
5.	488	+		=	741
6.	374	+		=	581
7.	385	+		=	710
8.	487	+		=	774
9.	327	+		=	482
10.	499	+		=	702

Oefening 4
1.	401	+		=	565
2.	166	+		=	312
3.	236	+		=	447
4.	488	+		=	968
5.	488	+		=	857
6.	435	+		=	779
7.	334	+		=	444
8.	431	+		=	840
9.	298	+		=	421
10.	290	+		=	498

Erbijsommen met vlekken tot en met 1.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	499	+	495	=	994
2.	230	+	136	=	366
3.	358	+	154	=	512
4.	375	+	207	=	582
5.	447	+	201	=	648
6.	430	+	357	=	787
7.	285	+	232	=	517
8.	373	+	160	=	533
9.	397	+	198	=	595
10.	453	+	341	=	794

Oefening 2
1.	378	+	320	=	698
2.	447	+	268	=	715
3.	448	+	364	=	812
4.	280	+	246	=	526
5.	326	+	168	=	494
6.	473	+	429	=	902
7.	218	+	183	=	401
8.	410	+	126	=	536
9.	461	+	340	=	801
10.	373	+	183	=	556

Oefening 3
1.	445	+	304	=	749
2.	426	+	253	=	679
3.	373	+	107	=	480
4.	353	+	254	=	607
5.	488	+	253	=	741
6.	374	+	207	=	581
7.	385	+	325	=	710
8.	487	+	287	=	774
9.	327	+	155	=	482
10.	499	+	203	=	702

Oefening 4
1.	401	+	164	=	565
2.	166	+	146	=	312
3.	236	+	211	=	447
4.	488	+	480	=	968
5.	488	+	369	=	857
6.	435	+	344	=	779
7.	334	+	110	=	444
8.	431	+	409	=	840
9.	298	+	123	=	421
10.	290	+	208	=	498