Erbijsommen met vlekken tot en met 1.000

Erbijsommen

Oefening 1
1.	328	+		=	500
2.	406	+		=	552
3.	353	+		=	628
4.	474	+		=	905
5.	414	+		=	693
6.	475	+		=	926
7.	339	+		=	569
8.	472	+		=	693
9.	411	+		=	817
10.	321	+		=	424

Oefening 2
1.	380	+		=	641
2.	293	+		=	443
3.	399	+		=	715
4.	428	+		=	716
5.	144	+		=	253
6.	295	+		=	528
7.	340	+		=	651
8.	441	+		=	698
9.	238	+		=	471
10.	188	+		=	348

Oefening 3
1.	170	+		=	316
2.	339	+		=	570
3.	304	+		=	572
4.	222	+		=	431
5.	322	+		=	467
6.	160	+		=	264
7.	432	+		=	661
8.	426	+		=	571
9.	215	+		=	429
10.	219	+		=	409

Oefening 4
1.	364	+		=	601
2.	324	+		=	543
3.	225	+		=	393
4.	346	+		=	628
5.	339	+		=	527
6.	348	+		=	673
7.	286	+		=	559
8.	456	+		=	697
9.	278	+		=	413
10.	411	+		=	727

Erbijsommen met vlekken tot en met 1.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	328	+	172	=	500
2.	406	+	146	=	552
3.	353	+	275	=	628
4.	474	+	431	=	905
5.	414	+	279	=	693
6.	475	+	451	=	926
7.	339	+	230	=	569
8.	472	+	221	=	693
9.	411	+	406	=	817
10.	321	+	103	=	424

Oefening 2
1.	380	+	261	=	641
2.	293	+	150	=	443
3.	399	+	316	=	715
4.	428	+	288	=	716
5.	144	+	109	=	253
6.	295	+	233	=	528
7.	340	+	311	=	651
8.	441	+	257	=	698
9.	238	+	233	=	471
10.	188	+	160	=	348

Oefening 3
1.	170	+	146	=	316
2.	339	+	231	=	570
3.	304	+	268	=	572
4.	222	+	209	=	431
5.	322	+	145	=	467
6.	160	+	104	=	264
7.	432	+	229	=	661
8.	426	+	145	=	571
9.	215	+	214	=	429
10.	219	+	190	=	409

Oefening 4
1.	364	+	237	=	601
2.	324	+	219	=	543
3.	225	+	168	=	393
4.	346	+	282	=	628
5.	339	+	188	=	527
6.	348	+	325	=	673
7.	286	+	273	=	559
8.	456	+	241	=	697
9.	278	+	135	=	413
10.	411	+	316	=	727