Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	698	+		=	1.369
2.	360	+		=	640
3.	908	+		=	1.554
4.	735	+		=	1.254
5.	280	+		=	502
6.	925	+		=	1.736
7.	393	+		=	683
8.	339	+		=	562
9.	402	+		=	647
10.	556	+		=	1.087

Oefening 2
1.	499	+		=	747
2.	826	+		=	1.561
3.	680	+		=	1.296
4.	564	+		=	801
5.	400	+		=	714
6.	877	+		=	1.369
7.	707	+		=	1.391
8.	783	+		=	1.026
9.	685	+		=	1.180
10.	714	+		=	1.138

Oefening 3
1.	907	+		=	1.272
2.	866	+		=	1.480
3.	579	+		=	858
4.	608	+		=	1.202
5.	793	+		=	1.117
6.	933	+		=	1.576
7.	790	+		=	1.131
8.	719	+		=	1.305
9.	812	+		=	1.087
10.	392	+		=	633

Oefening 4
1.	799	+		=	1.542
2.	819	+		=	1.330
3.	873	+		=	1.212
4.	889	+		=	1.218
5.	692	+		=	1.127
6.	974	+		=	1.825
7.	540	+		=	840
8.	629	+		=	1.187
9.	981	+		=	1.376
10.	592	+		=	1.026

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	698	+	671	=	1.369
2.	360	+	280	=	640
3.	908	+	646	=	1.554
4.	735	+	519	=	1.254
5.	280	+	222	=	502
6.	925	+	811	=	1.736
7.	393	+	290	=	683
8.	339	+	223	=	562
9.	402	+	245	=	647
10.	556	+	531	=	1.087

Oefening 2
1.	499	+	248	=	747
2.	826	+	735	=	1.561
3.	680	+	616	=	1.296
4.	564	+	237	=	801
5.	400	+	314	=	714
6.	877	+	492	=	1.369
7.	707	+	684	=	1.391
8.	783	+	243	=	1.026
9.	685	+	495	=	1.180
10.	714	+	424	=	1.138

Oefening 3
1.	907	+	365	=	1.272
2.	866	+	614	=	1.480
3.	579	+	279	=	858
4.	608	+	594	=	1.202
5.	793	+	324	=	1.117
6.	933	+	643	=	1.576
7.	790	+	341	=	1.131
8.	719	+	586	=	1.305
9.	812	+	275	=	1.087
10.	392	+	241	=	633

Oefening 4
1.	799	+	743	=	1.542
2.	819	+	511	=	1.330
3.	873	+	339	=	1.212
4.	889	+	329	=	1.218
5.	692	+	435	=	1.127
6.	974	+	851	=	1.825
7.	540	+	300	=	840
8.	629	+	558	=	1.187
9.	981	+	395	=	1.376
10.	592	+	434	=	1.026