Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	261	+		=	515
2.	469	+		=	683
3.	579	+		=	1.009
4.	933	+		=	1.375
5.	701	+		=	943
6.	503	+		=	921
7.	751	+		=	1.397
8.	660	+		=	1.141
9.	805	+		=	1.484
10.	923	+		=	1.769

Oefening 2
1.	586	+		=	1.059
2.	535	+		=	784
3.	808	+		=	1.039
4.	958	+		=	1.801
5.	672	+		=	989
6.	836	+		=	1.315
7.	674	+		=	1.058
8.	311	+		=	596
9.	815	+		=	1.394
10.	916	+		=	1.423

Oefening 3
1.	947	+		=	1.190
2.	984	+		=	1.902
3.	844	+		=	1.213
4.	878	+		=	1.599
5.	386	+		=	707
6.	734	+		=	1.361
7.	396	+		=	647
8.	946	+		=	1.787
9.	953	+		=	1.485
10.	904	+		=	1.311

Oefening 4
1.	590	+		=	1.028
2.	900	+		=	1.253
3.	906	+		=	1.675
4.	890	+		=	1.305
5.	866	+		=	1.223
6.	887	+		=	1.253
7.	596	+		=	842
8.	689	+		=	913
9.	651	+		=	1.197
10.	784	+		=	1.540

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	261	+	254	=	515
2.	469	+	214	=	683
3.	579	+	430	=	1.009
4.	933	+	442	=	1.375
5.	701	+	242	=	943
6.	503	+	418	=	921
7.	751	+	646	=	1.397
8.	660	+	481	=	1.141
9.	805	+	679	=	1.484
10.	923	+	846	=	1.769

Oefening 2
1.	586	+	473	=	1.059
2.	535	+	249	=	784
3.	808	+	231	=	1.039
4.	958	+	843	=	1.801
5.	672	+	317	=	989
6.	836	+	479	=	1.315
7.	674	+	384	=	1.058
8.	311	+	285	=	596
9.	815	+	579	=	1.394
10.	916	+	507	=	1.423

Oefening 3
1.	947	+	243	=	1.190
2.	984	+	918	=	1.902
3.	844	+	369	=	1.213
4.	878	+	721	=	1.599
5.	386	+	321	=	707
6.	734	+	627	=	1.361
7.	396	+	251	=	647
8.	946	+	841	=	1.787
9.	953	+	532	=	1.485
10.	904	+	407	=	1.311

Oefening 4
1.	590	+	438	=	1.028
2.	900	+	353	=	1.253
3.	906	+	769	=	1.675
4.	890	+	415	=	1.305
5.	866	+	357	=	1.223
6.	887	+	366	=	1.253
7.	596	+	246	=	842
8.	689	+	224	=	913
9.	651	+	546	=	1.197
10.	784	+	756	=	1.540