Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	211	+		=	412
2.	972	+		=	1.593
3.	821	+		=	1.092
4.	504	+		=	966
5.	919	+		=	1.130
6.	707	+		=	983
7.	417	+		=	821
8.	433	+		=	733
9.	700	+		=	1.018
10.	540	+		=	1.058

Oefening 2
1.	703	+		=	991
2.	636	+		=	864
3.	607	+		=	950
4.	844	+		=	1.155
5.	506	+		=	767
6.	756	+		=	1.110
7.	849	+		=	1.156
8.	692	+		=	1.167
9.	698	+		=	1.135
10.	951	+		=	1.790

Oefening 3
1.	329	+		=	565
2.	280	+		=	525
3.	778	+		=	1.459
4.	501	+		=	879
5.	631	+		=	993
6.	465	+		=	739
7.	710	+		=	955
8.	988	+		=	1.349
9.	547	+		=	770
10.	876	+		=	1.721

Oefening 4
1.	847	+		=	1.086
2.	900	+		=	1.352
3.	576	+		=	1.007
4.	742	+		=	1.019
5.	717	+		=	1.411
6.	794	+		=	1.374
7.	920	+		=	1.240
8.	742	+		=	1.300
9.	988	+		=	1.601
10.	538	+		=	758

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	211	+	201	=	412
2.	972	+	621	=	1.593
3.	821	+	271	=	1.092
4.	504	+	462	=	966
5.	919	+	211	=	1.130
6.	707	+	276	=	983
7.	417	+	404	=	821
8.	433	+	300	=	733
9.	700	+	318	=	1.018
10.	540	+	518	=	1.058

Oefening 2
1.	703	+	288	=	991
2.	636	+	228	=	864
3.	607	+	343	=	950
4.	844	+	311	=	1.155
5.	506	+	261	=	767
6.	756	+	354	=	1.110
7.	849	+	307	=	1.156
8.	692	+	475	=	1.167
9.	698	+	437	=	1.135
10.	951	+	839	=	1.790

Oefening 3
1.	329	+	236	=	565
2.	280	+	245	=	525
3.	778	+	681	=	1.459
4.	501	+	378	=	879
5.	631	+	362	=	993
6.	465	+	274	=	739
7.	710	+	245	=	955
8.	988	+	361	=	1.349
9.	547	+	223	=	770
10.	876	+	845	=	1.721

Oefening 4
1.	847	+	239	=	1.086
2.	900	+	452	=	1.352
3.	576	+	431	=	1.007
4.	742	+	277	=	1.019
5.	717	+	694	=	1.411
6.	794	+	580	=	1.374
7.	920	+	320	=	1.240
8.	742	+	558	=	1.300
9.	988	+	613	=	1.601
10.	538	+	220	=	758