Erbijsommen met vlekken tot en met 1.000

Erbijsommen

Oefening 1
1.	315	+		=	543
2.	171	+		=	341
3.	273	+		=	536
4.	499	+		=	651
5.	287	+		=	444
6.	437	+		=	760
7.	309	+		=	506
8.	296	+		=	572
9.	402	+		=	726
10.	455	+		=	743

Oefening 2
1.	445	+		=	883
2.	298	+		=	564
3.	281	+		=	403
4.	474	+		=	904
5.	421	+		=	646
6.	450	+		=	810
7.	399	+		=	614
8.	395	+		=	543
9.	455	+		=	757
10.	451	+		=	863

Oefening 3
1.	433	+		=	658
2.	467	+		=	634
3.	391	+		=	678
4.	373	+		=	700
5.	382	+		=	683
6.	398	+		=	644
7.	432	+		=	830
8.	397	+		=	720
9.	211	+		=	340
10.	426	+		=	566

Oefening 4
1.	468	+		=	781
2.	321	+		=	557
3.	461	+		=	643
4.	341	+		=	680
5.	371	+		=	560
6.	452	+		=	740
7.	250	+		=	476
8.	464	+		=	809
9.	497	+		=	932
10.	459	+		=	837

Erbijsommen met vlekken tot en met 1.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	315	+	228	=	543
2.	171	+	170	=	341
3.	273	+	263	=	536
4.	499	+	152	=	651
5.	287	+	157	=	444
6.	437	+	323	=	760
7.	309	+	197	=	506
8.	296	+	276	=	572
9.	402	+	324	=	726
10.	455	+	288	=	743

Oefening 2
1.	445	+	438	=	883
2.	298	+	266	=	564
3.	281	+	122	=	403
4.	474	+	430	=	904
5.	421	+	225	=	646
6.	450	+	360	=	810
7.	399	+	215	=	614
8.	395	+	148	=	543
9.	455	+	302	=	757
10.	451	+	412	=	863

Oefening 3
1.	433	+	225	=	658
2.	467	+	167	=	634
3.	391	+	287	=	678
4.	373	+	327	=	700
5.	382	+	301	=	683
6.	398	+	246	=	644
7.	432	+	398	=	830
8.	397	+	323	=	720
9.	211	+	129	=	340
10.	426	+	140	=	566

Oefening 4
1.	468	+	313	=	781
2.	321	+	236	=	557
3.	461	+	182	=	643
4.	341	+	339	=	680
5.	371	+	189	=	560
6.	452	+	288	=	740
7.	250	+	226	=	476
8.	464	+	345	=	809
9.	497	+	435	=	932
10.	459	+	378	=	837