Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	413	+		=	695
2.	970	+		=	1.229
3.	680	+		=	1.119
4.	670	+		=	1.313
5.	924	+		=	1.245
6.	921	+		=	1.417
7.	911	+		=	1.670
8.	936	+		=	1.165
9.	686	+		=	1.359
10.	989	+		=	1.278

Oefening 2
1.	946	+		=	1.842
2.	946	+		=	1.743
3.	694	+		=	1.026
4.	672	+		=	974
5.	579	+		=	1.116
6.	520	+		=	810
7.	640	+		=	1.233
8.	708	+		=	1.281
9.	857	+		=	1.334
10.	530	+		=	936

Oefening 3
1.	909	+		=	1.400
2.	705	+		=	1.139
3.	652	+		=	970
4.	613	+		=	1.014
5.	596	+		=	1.045
6.	261	+		=	461
7.	643	+		=	875
8.	983	+		=	1.406
9.	871	+		=	1.472
10.	547	+		=	794

Oefening 4
1.	919	+		=	1.343
2.	866	+		=	1.570
3.	460	+		=	836
4.	674	+		=	1.203
5.	881	+		=	1.218
6.	785	+		=	1.318
7.	673	+		=	1.338
8.	966	+		=	1.299
9.	656	+		=	1.178
10.	656	+		=	1.188

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	413	+	282	=	695
2.	970	+	259	=	1.229
3.	680	+	439	=	1.119
4.	670	+	643	=	1.313
5.	924	+	321	=	1.245
6.	921	+	496	=	1.417
7.	911	+	759	=	1.670
8.	936	+	229	=	1.165
9.	686	+	673	=	1.359
10.	989	+	289	=	1.278

Oefening 2
1.	946	+	896	=	1.842
2.	946	+	797	=	1.743
3.	694	+	332	=	1.026
4.	672	+	302	=	974
5.	579	+	537	=	1.116
6.	520	+	290	=	810
7.	640	+	593	=	1.233
8.	708	+	573	=	1.281
9.	857	+	477	=	1.334
10.	530	+	406	=	936

Oefening 3
1.	909	+	491	=	1.400
2.	705	+	434	=	1.139
3.	652	+	318	=	970
4.	613	+	401	=	1.014
5.	596	+	449	=	1.045
6.	261	+	200	=	461
7.	643	+	232	=	875
8.	983	+	423	=	1.406
9.	871	+	601	=	1.472
10.	547	+	247	=	794

Oefening 4
1.	919	+	424	=	1.343
2.	866	+	704	=	1.570
3.	460	+	376	=	836
4.	674	+	529	=	1.203
5.	881	+	337	=	1.218
6.	785	+	533	=	1.318
7.	673	+	665	=	1.338
8.	966	+	333	=	1.299
9.	656	+	522	=	1.178
10.	656	+	532	=	1.188