Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	657	+		=	1.312
2.	682	+		=	1.296
3.	508	+		=	937
4.	454	+		=	827
5.	720	+		=	1.131
6.	513	+		=	780
7.	545	+		=	871
8.	708	+		=	1.155
9.	838	+		=	1.582
10.	658	+		=	1.153

Oefening 2
1.	449	+		=	692
2.	459	+		=	775
3.	912	+		=	1.151
4.	499	+		=	849
5.	683	+		=	1.273
6.	878	+		=	1.594
7.	978	+		=	1.919
8.	954	+		=	1.539
9.	607	+		=	1.085
10.	801	+		=	1.341

Oefening 3
1.	962	+		=	1.216
2.	679	+		=	931
3.	873	+		=	1.220
4.	908	+		=	1.343
5.	645	+		=	1.025
6.	860	+		=	1.284
7.	705	+		=	1.102
8.	880	+		=	1.116
9.	800	+		=	1.266
10.	666	+		=	912

Oefening 4
1.	360	+		=	698
2.	899	+		=	1.490
3.	573	+		=	832
4.	502	+		=	885
5.	981	+		=	1.521
6.	703	+		=	922
7.	813	+		=	1.071
8.	690	+		=	930
9.	996	+		=	1.432
10.	894	+		=	1.464

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	657	+	655	=	1.312
2.	682	+	614	=	1.296
3.	508	+	429	=	937
4.	454	+	373	=	827
5.	720	+	411	=	1.131
6.	513	+	267	=	780
7.	545	+	326	=	871
8.	708	+	447	=	1.155
9.	838	+	744	=	1.582
10.	658	+	495	=	1.153

Oefening 2
1.	449	+	243	=	692
2.	459	+	316	=	775
3.	912	+	239	=	1.151
4.	499	+	350	=	849
5.	683	+	590	=	1.273
6.	878	+	716	=	1.594
7.	978	+	941	=	1.919
8.	954	+	585	=	1.539
9.	607	+	478	=	1.085
10.	801	+	540	=	1.341

Oefening 3
1.	962	+	254	=	1.216
2.	679	+	252	=	931
3.	873	+	347	=	1.220
4.	908	+	435	=	1.343
5.	645	+	380	=	1.025
6.	860	+	424	=	1.284
7.	705	+	397	=	1.102
8.	880	+	236	=	1.116
9.	800	+	466	=	1.266
10.	666	+	246	=	912

Oefening 4
1.	360	+	338	=	698
2.	899	+	591	=	1.490
3.	573	+	259	=	832
4.	502	+	383	=	885
5.	981	+	540	=	1.521
6.	703	+	219	=	922
7.	813	+	258	=	1.071
8.	690	+	240	=	930
9.	996	+	436	=	1.432
10.	894	+	570	=	1.464