Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	631	+		=	990
2.	962	+		=	1.658
3.	484	+		=	851
4.	730	+		=	1.126
5.	840	+		=	1.232
6.	748	+		=	1.265
7.	971	+		=	1.711
8.	846	+		=	1.404
9.	554	+		=	994
10.	456	+		=	894

Oefening 2
1.	910	+		=	1.796
2.	630	+		=	1.259
3.	690	+		=	1.322
4.	972	+		=	1.673
5.	676	+		=	1.276
6.	547	+		=	1.007
7.	865	+		=	1.095
8.	516	+		=	738
9.	652	+		=	1.105
10.	597	+		=	924

Oefening 3
1.	553	+		=	855
2.	523	+		=	1.030
3.	292	+		=	522
4.	846	+		=	1.498
5.	861	+		=	1.574
6.	955	+		=	1.159
7.	820	+		=	1.085
8.	990	+		=	1.749
9.	746	+		=	1.223
10.	705	+		=	1.227

Oefening 4
1.	987	+		=	1.408
2.	954	+		=	1.425
3.	556	+		=	787
4.	827	+		=	1.620
5.	811	+		=	1.406
6.	719	+		=	1.378
7.	259	+		=	502
8.	404	+		=	613
9.	480	+		=	861
10.	992	+		=	1.896

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	631	+	359	=	990
2.	962	+	696	=	1.658
3.	484	+	367	=	851
4.	730	+	396	=	1.126
5.	840	+	392	=	1.232
6.	748	+	517	=	1.265
7.	971	+	740	=	1.711
8.	846	+	558	=	1.404
9.	554	+	440	=	994
10.	456	+	438	=	894

Oefening 2
1.	910	+	886	=	1.796
2.	630	+	629	=	1.259
3.	690	+	632	=	1.322
4.	972	+	701	=	1.673
5.	676	+	600	=	1.276
6.	547	+	460	=	1.007
7.	865	+	230	=	1.095
8.	516	+	222	=	738
9.	652	+	453	=	1.105
10.	597	+	327	=	924

Oefening 3
1.	553	+	302	=	855
2.	523	+	507	=	1.030
3.	292	+	230	=	522
4.	846	+	652	=	1.498
5.	861	+	713	=	1.574
6.	955	+	204	=	1.159
7.	820	+	265	=	1.085
8.	990	+	759	=	1.749
9.	746	+	477	=	1.223
10.	705	+	522	=	1.227

Oefening 4
1.	987	+	421	=	1.408
2.	954	+	471	=	1.425
3.	556	+	231	=	787
4.	827	+	793	=	1.620
5.	811	+	595	=	1.406
6.	719	+	659	=	1.378
7.	259	+	243	=	502
8.	404	+	209	=	613
9.	480	+	381	=	861
10.	992	+	904	=	1.896