Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	391	+		=	698
2.	979	+		=	1.878
3.	463	+		=	741
4.	963	+		=	1.581
5.	590	+		=	888
6.	479	+		=	684
7.	472	+		=	899
8.	494	+		=	888
9.	545	+		=	946
10.	974	+		=	1.395

Oefening 2
1.	690	+		=	1.067
2.	997	+		=	1.540
3.	808	+		=	1.184
4.	434	+		=	792
5.	971	+		=	1.313
6.	827	+		=	1.142
7.	770	+		=	1.311
8.	616	+		=	1.096
9.	472	+		=	858
10.	841	+		=	1.180

Oefening 3
1.	581	+		=	1.028
2.	724	+		=	1.199
3.	789	+		=	1.094
4.	568	+		=	824
5.	897	+		=	1.322
6.	820	+		=	1.107
7.	882	+		=	1.702
8.	919	+		=	1.595
9.	581	+		=	966
10.	816	+		=	1.473

Oefening 4
1.	981	+		=	1.921
2.	872	+		=	1.187
3.	941	+		=	1.152
4.	866	+		=	1.197
5.	967	+		=	1.583
6.	860	+		=	1.454
7.	921	+		=	1.551
8.	805	+		=	1.059
9.	641	+		=	974
10.	757	+		=	1.308

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	391	+	307	=	698
2.	979	+	899	=	1.878
3.	463	+	278	=	741
4.	963	+	618	=	1.581
5.	590	+	298	=	888
6.	479	+	205	=	684
7.	472	+	427	=	899
8.	494	+	394	=	888
9.	545	+	401	=	946
10.	974	+	421	=	1.395

Oefening 2
1.	690	+	377	=	1.067
2.	997	+	543	=	1.540
3.	808	+	376	=	1.184
4.	434	+	358	=	792
5.	971	+	342	=	1.313
6.	827	+	315	=	1.142
7.	770	+	541	=	1.311
8.	616	+	480	=	1.096
9.	472	+	386	=	858
10.	841	+	339	=	1.180

Oefening 3
1.	581	+	447	=	1.028
2.	724	+	475	=	1.199
3.	789	+	305	=	1.094
4.	568	+	256	=	824
5.	897	+	425	=	1.322
6.	820	+	287	=	1.107
7.	882	+	820	=	1.702
8.	919	+	676	=	1.595
9.	581	+	385	=	966
10.	816	+	657	=	1.473

Oefening 4
1.	981	+	940	=	1.921
2.	872	+	315	=	1.187
3.	941	+	211	=	1.152
4.	866	+	331	=	1.197
5.	967	+	616	=	1.583
6.	860	+	594	=	1.454
7.	921	+	630	=	1.551
8.	805	+	254	=	1.059
9.	641	+	333	=	974
10.	757	+	551	=	1.308