Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	439	+		=	697
2.	902	+		=	1.259
3.	978	+		=	1.237
4.	326	+		=	567
5.	386	+		=	701
6.	607	+		=	1.092
7.	419	+		=	759
8.	517	+		=	845
9.	576	+		=	975
10.	753	+		=	1.196

Oefening 2
1.	946	+		=	1.891
2.	861	+		=	1.372
3.	341	+		=	563
4.	800	+		=	1.082
5.	909	+		=	1.688
6.	532	+		=	864
7.	552	+		=	980
8.	762	+		=	1.304
9.	335	+		=	593
10.	309	+		=	574

Oefening 3
1.	988	+		=	1.603
2.	687	+		=	1.063
3.	905	+		=	1.744
4.	600	+		=	1.169
5.	500	+		=	889
6.	675	+		=	922
7.	520	+		=	762
8.	604	+		=	1.113
9.	849	+		=	1.391
10.	619	+		=	1.234

Oefening 4
1.	633	+		=	839
2.	430	+		=	820
3.	945	+		=	1.539
4.	682	+		=	1.113
5.	822	+		=	1.489
6.	323	+		=	644
7.	497	+		=	983
8.	784	+		=	1.543
9.	917	+		=	1.443
10.	965	+		=	1.513

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	439	+	258	=	697
2.	902	+	357	=	1.259
3.	978	+	259	=	1.237
4.	326	+	241	=	567
5.	386	+	315	=	701
6.	607	+	485	=	1.092
7.	419	+	340	=	759
8.	517	+	328	=	845
9.	576	+	399	=	975
10.	753	+	443	=	1.196

Oefening 2
1.	946	+	945	=	1.891
2.	861	+	511	=	1.372
3.	341	+	222	=	563
4.	800	+	282	=	1.082
5.	909	+	779	=	1.688
6.	532	+	332	=	864
7.	552	+	428	=	980
8.	762	+	542	=	1.304
9.	335	+	258	=	593
10.	309	+	265	=	574

Oefening 3
1.	988	+	615	=	1.603
2.	687	+	376	=	1.063
3.	905	+	839	=	1.744
4.	600	+	569	=	1.169
5.	500	+	389	=	889
6.	675	+	247	=	922
7.	520	+	242	=	762
8.	604	+	509	=	1.113
9.	849	+	542	=	1.391
10.	619	+	615	=	1.234

Oefening 4
1.	633	+	206	=	839
2.	430	+	390	=	820
3.	945	+	594	=	1.539
4.	682	+	431	=	1.113
5.	822	+	667	=	1.489
6.	323	+	321	=	644
7.	497	+	486	=	983
8.	784	+	759	=	1.543
9.	917	+	526	=	1.443
10.	965	+	548	=	1.513