Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	831	+		=	1.598
2.	975	+		=	1.573
3.	626	+		=	1.191
4.	351	+		=	573
5.	826	+		=	1.122
6.	523	+		=	738
7.	849	+		=	1.586
8.	779	+		=	1.193
9.	975	+		=	1.327
10.	742	+		=	1.256

Oefening 2
1.	276	+		=	497
2.	682	+		=	998
3.	688	+		=	925
4.	706	+		=	1.257
5.	818	+		=	1.294
6.	961	+		=	1.840
7.	703	+		=	1.044
8.	892	+		=	1.575
9.	802	+		=	1.099
10.	505	+		=	844

Oefening 3
1.	527	+		=	758
2.	535	+		=	911
3.	770	+		=	1.049
4.	906	+		=	1.229
5.	507	+		=	900
6.	672	+		=	912
7.	972	+		=	1.314
8.	791	+		=	1.098
9.	765	+		=	1.299
10.	763	+		=	1.294

Oefening 4
1.	743	+		=	1.033
2.	967	+		=	1.632
3.	340	+		=	665
4.	826	+		=	1.605
5.	827	+		=	1.570
6.	484	+		=	819
7.	624	+		=	1.185
8.	690	+		=	1.158
9.	874	+		=	1.106
10.	609	+		=	1.121

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	831	+	767	=	1.598
2.	975	+	598	=	1.573
3.	626	+	565	=	1.191
4.	351	+	222	=	573
5.	826	+	296	=	1.122
6.	523	+	215	=	738
7.	849	+	737	=	1.586
8.	779	+	414	=	1.193
9.	975	+	352	=	1.327
10.	742	+	514	=	1.256

Oefening 2
1.	276	+	221	=	497
2.	682	+	316	=	998
3.	688	+	237	=	925
4.	706	+	551	=	1.257
5.	818	+	476	=	1.294
6.	961	+	879	=	1.840
7.	703	+	341	=	1.044
8.	892	+	683	=	1.575
9.	802	+	297	=	1.099
10.	505	+	339	=	844

Oefening 3
1.	527	+	231	=	758
2.	535	+	376	=	911
3.	770	+	279	=	1.049
4.	906	+	323	=	1.229
5.	507	+	393	=	900
6.	672	+	240	=	912
7.	972	+	342	=	1.314
8.	791	+	307	=	1.098
9.	765	+	534	=	1.299
10.	763	+	531	=	1.294

Oefening 4
1.	743	+	290	=	1.033
2.	967	+	665	=	1.632
3.	340	+	325	=	665
4.	826	+	779	=	1.605
5.	827	+	743	=	1.570
6.	484	+	335	=	819
7.	624	+	561	=	1.185
8.	690	+	468	=	1.158
9.	874	+	232	=	1.106
10.	609	+	512	=	1.121