Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	489	+		=	869
2.	737	+		=	1.341
3.	954	+		=	1.590
4.	638	+		=	1.231
5.	642	+		=	1.217
6.	836	+		=	1.080
7.	350	+		=	566
8.	633	+		=	973
9.	548	+		=	959
10.	822	+		=	1.125

Oefening 2
1.	377	+		=	727
2.	669	+		=	1.079
3.	909	+		=	1.797
4.	635	+		=	968
5.	833	+		=	1.059
6.	692	+		=	1.111
7.	775	+		=	1.127
8.	678	+		=	1.285
9.	810	+		=	1.354
10.	693	+		=	1.293

Oefening 3
1.	965	+		=	1.920
2.	921	+		=	1.536
3.	511	+		=	830
4.	628	+		=	1.246
5.	901	+		=	1.416
6.	661	+		=	983
7.	893	+		=	1.541
8.	593	+		=	1.051
9.	941	+		=	1.435
10.	690	+		=	1.230

Oefening 4
1.	300	+		=	572
2.	939	+		=	1.390
3.	579	+		=	1.074
4.	944	+		=	1.529
5.	741	+		=	1.259
6.	489	+		=	941
7.	826	+		=	1.420
8.	968	+		=	1.685
9.	741	+		=	1.378
10.	909	+		=	1.806

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	489	+	380	=	869
2.	737	+	604	=	1.341
3.	954	+	636	=	1.590
4.	638	+	593	=	1.231
5.	642	+	575	=	1.217
6.	836	+	244	=	1.080
7.	350	+	216	=	566
8.	633	+	340	=	973
9.	548	+	411	=	959
10.	822	+	303	=	1.125

Oefening 2
1.	377	+	350	=	727
2.	669	+	410	=	1.079
3.	909	+	888	=	1.797
4.	635	+	333	=	968
5.	833	+	226	=	1.059
6.	692	+	419	=	1.111
7.	775	+	352	=	1.127
8.	678	+	607	=	1.285
9.	810	+	544	=	1.354
10.	693	+	600	=	1.293

Oefening 3
1.	965	+	955	=	1.920
2.	921	+	615	=	1.536
3.	511	+	319	=	830
4.	628	+	618	=	1.246
5.	901	+	515	=	1.416
6.	661	+	322	=	983
7.	893	+	648	=	1.541
8.	593	+	458	=	1.051
9.	941	+	494	=	1.435
10.	690	+	540	=	1.230

Oefening 4
1.	300	+	272	=	572
2.	939	+	451	=	1.390
3.	579	+	495	=	1.074
4.	944	+	585	=	1.529
5.	741	+	518	=	1.259
6.	489	+	452	=	941
7.	826	+	594	=	1.420
8.	968	+	717	=	1.685
9.	741	+	637	=	1.378
10.	909	+	897	=	1.806