Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	972	+		=	1.584
2.	646	+		=	1.204
3.	391	+		=	712
4.	758	+		=	999
5.	979	+		=	1.613
6.	869	+		=	1.389
7.	378	+		=	578
8.	929	+		=	1.379
9.	722	+		=	981
10.	873	+		=	1.174

Oefening 2
1.	931	+		=	1.732
2.	707	+		=	1.023
3.	832	+		=	1.341
4.	379	+		=	726
5.	991	+		=	1.778
6.	764	+		=	1.028
7.	843	+		=	1.254
8.	719	+		=	1.193
9.	665	+		=	1.090
10.	461	+		=	856

Oefening 3
1.	470	+		=	931
2.	612	+		=	891
3.	862	+		=	1.635
4.	796	+		=	1.166
5.	998	+		=	1.211
6.	959	+		=	1.730
7.	741	+		=	1.414
8.	571	+		=	861
9.	630	+		=	1.162
10.	856	+		=	1.625

Oefening 4
1.	667	+		=	912
2.	518	+		=	739
3.	694	+		=	1.349
4.	627	+		=	891
5.	570	+		=	908
6.	721	+		=	1.151
7.	682	+		=	1.221
8.	669	+		=	945
9.	513	+		=	888
10.	582	+		=	1.115

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	972	+	612	=	1.584
2.	646	+	558	=	1.204
3.	391	+	321	=	712
4.	758	+	241	=	999
5.	979	+	634	=	1.613
6.	869	+	520	=	1.389
7.	378	+	200	=	578
8.	929	+	450	=	1.379
9.	722	+	259	=	981
10.	873	+	301	=	1.174

Oefening 2
1.	931	+	801	=	1.732
2.	707	+	316	=	1.023
3.	832	+	509	=	1.341
4.	379	+	347	=	726
5.	991	+	787	=	1.778
6.	764	+	264	=	1.028
7.	843	+	411	=	1.254
8.	719	+	474	=	1.193
9.	665	+	425	=	1.090
10.	461	+	395	=	856

Oefening 3
1.	470	+	461	=	931
2.	612	+	279	=	891
3.	862	+	773	=	1.635
4.	796	+	370	=	1.166
5.	998	+	213	=	1.211
6.	959	+	771	=	1.730
7.	741	+	673	=	1.414
8.	571	+	290	=	861
9.	630	+	532	=	1.162
10.	856	+	769	=	1.625

Oefening 4
1.	667	+	245	=	912
2.	518	+	221	=	739
3.	694	+	655	=	1.349
4.	627	+	264	=	891
5.	570	+	338	=	908
6.	721	+	430	=	1.151
7.	682	+	539	=	1.221
8.	669	+	276	=	945
9.	513	+	375	=	888
10.	582	+	533	=	1.115