Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	490	+		=	837
2.	979	+		=	1.788
3.	731	+		=	1.197
4.	754	+		=	1.125
5.	953	+		=	1.644
6.	398	+		=	750
7.	228	+		=	440
8.	805	+		=	1.588
9.	766	+		=	1.133
10.	941	+		=	1.794

Oefening 2
1.	706	+		=	914
2.	911	+		=	1.355
3.	636	+		=	1.236
4.	716	+		=	1.281
5.	885	+		=	1.327
6.	613	+		=	1.057
7.	841	+		=	1.210
8.	355	+		=	618
9.	841	+		=	1.210
10.	563	+		=	1.077

Oefening 3
1.	742	+		=	1.219
2.	882	+		=	1.740
3.	624	+		=	841
4.	658	+		=	1.287
5.	700	+		=	981
6.	557	+		=	819
7.	617	+		=	930
8.	653	+		=	1.203
9.	996	+		=	1.204
10.	797	+		=	1.200

Oefening 4
1.	931	+		=	1.575
2.	532	+		=	754
3.	943	+		=	1.280
4.	873	+		=	1.469
5.	922	+		=	1.350
6.	786	+		=	1.078
7.	379	+		=	655
8.	698	+		=	1.376
9.	995	+		=	1.277
10.	385	+		=	711

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	490	+	347	=	837
2.	979	+	809	=	1.788
3.	731	+	466	=	1.197
4.	754	+	371	=	1.125
5.	953	+	691	=	1.644
6.	398	+	352	=	750
7.	228	+	212	=	440
8.	805	+	783	=	1.588
9.	766	+	367	=	1.133
10.	941	+	853	=	1.794

Oefening 2
1.	706	+	208	=	914
2.	911	+	444	=	1.355
3.	636	+	600	=	1.236
4.	716	+	565	=	1.281
5.	885	+	442	=	1.327
6.	613	+	444	=	1.057
7.	841	+	369	=	1.210
8.	355	+	263	=	618
9.	841	+	369	=	1.210
10.	563	+	514	=	1.077

Oefening 3
1.	742	+	477	=	1.219
2.	882	+	858	=	1.740
3.	624	+	217	=	841
4.	658	+	629	=	1.287
5.	700	+	281	=	981
6.	557	+	262	=	819
7.	617	+	313	=	930
8.	653	+	550	=	1.203
9.	996	+	208	=	1.204
10.	797	+	403	=	1.200

Oefening 4
1.	931	+	644	=	1.575
2.	532	+	222	=	754
3.	943	+	337	=	1.280
4.	873	+	596	=	1.469
5.	922	+	428	=	1.350
6.	786	+	292	=	1.078
7.	379	+	276	=	655
8.	698	+	678	=	1.376
9.	995	+	282	=	1.277
10.	385	+	326	=	711