Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	505	+		=	888
2.	850	+		=	1.191
3.	886	+		=	1.424
4.	920	+		=	1.159
5.	462	+		=	761
6.	761	+		=	995
7.	823	+		=	1.114
8.	844	+		=	1.052
9.	959	+		=	1.275
10.	834	+		=	1.623

Oefening 2
1.	407	+		=	777
2.	335	+		=	561
3.	579	+		=	876
4.	722	+		=	1.322
5.	585	+		=	951
6.	520	+		=	897
7.	329	+		=	637
8.	393	+		=	703
9.	549	+		=	923
10.	841	+		=	1.317

Oefening 3
1.	642	+		=	1.108
2.	889	+		=	1.164
3.	887	+		=	1.623
4.	947	+		=	1.277
5.	387	+		=	673
6.	819	+		=	1.140
7.	692	+		=	1.173
8.	708	+		=	943
9.	696	+		=	917
10.	346	+		=	639

Oefening 4
1.	752	+		=	1.022
2.	992	+		=	1.455
3.	831	+		=	1.449
4.	406	+		=	744
5.	575	+		=	783
6.	843	+		=	1.401
7.	946	+		=	1.303
8.	796	+		=	1.435
9.	286	+		=	565
10.	820	+		=	1.263

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	505	+	383	=	888
2.	850	+	341	=	1.191
3.	886	+	538	=	1.424
4.	920	+	239	=	1.159
5.	462	+	299	=	761
6.	761	+	234	=	995
7.	823	+	291	=	1.114
8.	844	+	208	=	1.052
9.	959	+	316	=	1.275
10.	834	+	789	=	1.623

Oefening 2
1.	407	+	370	=	777
2.	335	+	226	=	561
3.	579	+	297	=	876
4.	722	+	600	=	1.322
5.	585	+	366	=	951
6.	520	+	377	=	897
7.	329	+	308	=	637
8.	393	+	310	=	703
9.	549	+	374	=	923
10.	841	+	476	=	1.317

Oefening 3
1.	642	+	466	=	1.108
2.	889	+	275	=	1.164
3.	887	+	736	=	1.623
4.	947	+	330	=	1.277
5.	387	+	286	=	673
6.	819	+	321	=	1.140
7.	692	+	481	=	1.173
8.	708	+	235	=	943
9.	696	+	221	=	917
10.	346	+	293	=	639

Oefening 4
1.	752	+	270	=	1.022
2.	992	+	463	=	1.455
3.	831	+	618	=	1.449
4.	406	+	338	=	744
5.	575	+	208	=	783
6.	843	+	558	=	1.401
7.	946	+	357	=	1.303
8.	796	+	639	=	1.435
9.	286	+	279	=	565
10.	820	+	443	=	1.263