Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	331	+		=	593
2.	731	+		=	1.140
3.	940	+		=	1.502
4.	972	+		=	1.326
5.	754	+		=	979
6.	940	+		=	1.751
7.	421	+		=	734
8.	976	+		=	1.808
9.	771	+		=	1.372
10.	721	+		=	1.233

Oefening 2
1.	784	+		=	1.319
2.	961	+		=	1.548
3.	729	+		=	1.421
4.	521	+		=	748
5.	926	+		=	1.412
6.	693	+		=	1.215
7.	726	+		=	1.080
8.	556	+		=	1.108
9.	880	+		=	1.281
10.	953	+		=	1.253

Oefening 3
1.	774	+		=	1.026
2.	863	+		=	1.083
3.	988	+		=	1.778
4.	361	+		=	624
5.	780	+		=	1.450
6.	368	+		=	595
7.	996	+		=	1.978
8.	882	+		=	1.370
9.	574	+		=	856
10.	743	+		=	1.064

Oefening 4
1.	823	+		=	1.628
2.	402	+		=	720
3.	615	+		=	1.033
4.	926	+		=	1.734
5.	616	+		=	887
6.	632	+		=	1.193
7.	790	+		=	1.288
8.	802	+		=	1.152
9.	858	+		=	1.640
10.	848	+		=	1.680

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	331	+	262	=	593
2.	731	+	409	=	1.140
3.	940	+	562	=	1.502
4.	972	+	354	=	1.326
5.	754	+	225	=	979
6.	940	+	811	=	1.751
7.	421	+	313	=	734
8.	976	+	832	=	1.808
9.	771	+	601	=	1.372
10.	721	+	512	=	1.233

Oefening 2
1.	784	+	535	=	1.319
2.	961	+	587	=	1.548
3.	729	+	692	=	1.421
4.	521	+	227	=	748
5.	926	+	486	=	1.412
6.	693	+	522	=	1.215
7.	726	+	354	=	1.080
8.	556	+	552	=	1.108
9.	880	+	401	=	1.281
10.	953	+	300	=	1.253

Oefening 3
1.	774	+	252	=	1.026
2.	863	+	220	=	1.083
3.	988	+	790	=	1.778
4.	361	+	263	=	624
5.	780	+	670	=	1.450
6.	368	+	227	=	595
7.	996	+	982	=	1.978
8.	882	+	488	=	1.370
9.	574	+	282	=	856
10.	743	+	321	=	1.064

Oefening 4
1.	823	+	805	=	1.628
2.	402	+	318	=	720
3.	615	+	418	=	1.033
4.	926	+	808	=	1.734
5.	616	+	271	=	887
6.	632	+	561	=	1.193
7.	790	+	498	=	1.288
8.	802	+	350	=	1.152
9.	858	+	782	=	1.640
10.	848	+	832	=	1.680