Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	435	+		=	638
2.	689	+		=	924
3.	773	+		=	1.374
4.	978	+		=	1.557
5.	921	+		=	1.335
6.	928	+		=	1.319
7.	772	+		=	1.281
8.	896	+		=	1.788
9.	952	+		=	1.509
10.	585	+		=	899

Oefening 2
1.	667	+		=	875
2.	846	+		=	1.347
3.	616	+		=	1.231
4.	589	+		=	964
5.	533	+		=	927
6.	551	+		=	1.062
7.	949	+		=	1.718
8.	924	+		=	1.158
9.	713	+		=	1.158
10.	662	+		=	1.075

Oefening 3
1.	859	+		=	1.416
2.	812	+		=	1.586
3.	774	+		=	1.271
4.	936	+		=	1.771
5.	562	+		=	976
6.	685	+		=	1.334
7.	737	+		=	1.131
8.	527	+		=	807
9.	586	+		=	870
10.	692	+		=	1.334

Oefening 4
1.	992	+		=	1.196
2.	677	+		=	1.009
3.	911	+		=	1.491
4.	854	+		=	1.073
5.	781	+		=	1.137
6.	753	+		=	1.014
7.	903	+		=	1.731
8.	601	+		=	989
9.	852	+		=	1.241
10.	966	+		=	1.244

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	435	+	203	=	638
2.	689	+	235	=	924
3.	773	+	601	=	1.374
4.	978	+	579	=	1.557
5.	921	+	414	=	1.335
6.	928	+	391	=	1.319
7.	772	+	509	=	1.281
8.	896	+	892	=	1.788
9.	952	+	557	=	1.509
10.	585	+	314	=	899

Oefening 2
1.	667	+	208	=	875
2.	846	+	501	=	1.347
3.	616	+	615	=	1.231
4.	589	+	375	=	964
5.	533	+	394	=	927
6.	551	+	511	=	1.062
7.	949	+	769	=	1.718
8.	924	+	234	=	1.158
9.	713	+	445	=	1.158
10.	662	+	413	=	1.075

Oefening 3
1.	859	+	557	=	1.416
2.	812	+	774	=	1.586
3.	774	+	497	=	1.271
4.	936	+	835	=	1.771
5.	562	+	414	=	976
6.	685	+	649	=	1.334
7.	737	+	394	=	1.131
8.	527	+	280	=	807
9.	586	+	284	=	870
10.	692	+	642	=	1.334

Oefening 4
1.	992	+	204	=	1.196
2.	677	+	332	=	1.009
3.	911	+	580	=	1.491
4.	854	+	219	=	1.073
5.	781	+	356	=	1.137
6.	753	+	261	=	1.014
7.	903	+	828	=	1.731
8.	601	+	388	=	989
9.	852	+	389	=	1.241
10.	966	+	278	=	1.244