Erbijsommen met vlekken tot en met 1.000

Erbijsommen

Oefening 1
1.	431	+		=	717
2.	495	+		=	624
3.	434	+		=	628
4.	457	+		=	651
5.	476	+		=	679
6.	474	+		=	814
7.	399	+		=	592
8.	450	+		=	820
9.	291	+		=	435
10.	448	+		=	699

Oefening 2
1.	383	+		=	531
2.	219	+		=	409
3.	405	+		=	771
4.	304	+		=	565
5.	385	+		=	501
6.	314	+		=	449
7.	427	+		=	779
8.	345	+		=	520
9.	454	+		=	609
10.	478	+		=	652

Oefening 3
1.	397	+		=	733
2.	434	+		=	573
3.	417	+		=	584
4.	435	+		=	567
5.	195	+		=	361
6.	337	+		=	616
7.	384	+		=	492
8.	235	+		=	414
9.	345	+		=	529
10.	333	+		=	632

Oefening 4
1.	478	+		=	669
2.	239	+		=	432
3.	491	+		=	938
4.	233	+		=	361
5.	477	+		=	865
6.	387	+		=	501
7.	441	+		=	773
8.	496	+		=	745
9.	453	+		=	593
10.	330	+		=	639

Erbijsommen met vlekken tot en met 1.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	431	+	286	=	717
2.	495	+	129	=	624
3.	434	+	194	=	628
4.	457	+	194	=	651
5.	476	+	203	=	679
6.	474	+	340	=	814
7.	399	+	193	=	592
8.	450	+	370	=	820
9.	291	+	144	=	435
10.	448	+	251	=	699

Oefening 2
1.	383	+	148	=	531
2.	219	+	190	=	409
3.	405	+	366	=	771
4.	304	+	261	=	565
5.	385	+	116	=	501
6.	314	+	135	=	449
7.	427	+	352	=	779
8.	345	+	175	=	520
9.	454	+	155	=	609
10.	478	+	174	=	652

Oefening 3
1.	397	+	336	=	733
2.	434	+	139	=	573
3.	417	+	167	=	584
4.	435	+	132	=	567
5.	195	+	166	=	361
6.	337	+	279	=	616
7.	384	+	108	=	492
8.	235	+	179	=	414
9.	345	+	184	=	529
10.	333	+	299	=	632

Oefening 4
1.	478	+	191	=	669
2.	239	+	193	=	432
3.	491	+	447	=	938
4.	233	+	128	=	361
5.	477	+	388	=	865
6.	387	+	114	=	501
7.	441	+	332	=	773
8.	496	+	249	=	745
9.	453	+	140	=	593
10.	330	+	309	=	639