Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	620	+		=	979
2.	278	+		=	503
3.	414	+		=	676
4.	908	+		=	1.635
5.	968	+		=	1.578
6.	963	+		=	1.445
7.	685	+		=	1.333
8.	331	+		=	540
9.	796	+		=	1.557
10.	990	+		=	1.815

Oefening 2
1.	843	+		=	1.234
2.	752	+		=	957
3.	919	+		=	1.549
4.	401	+		=	654
5.	797	+		=	1.410
6.	826	+		=	1.566
7.	958	+		=	1.489
8.	362	+		=	642
9.	784	+		=	1.200
10.	865	+		=	1.707

Oefening 3
1.	453	+		=	886
2.	907	+		=	1.321
3.	858	+		=	1.124
4.	767	+		=	1.229
5.	709	+		=	946
6.	842	+		=	1.067
7.	620	+		=	1.226
8.	475	+		=	764
9.	713	+		=	1.159
10.	716	+		=	1.160

Oefening 4
1.	984	+		=	1.419
2.	989	+		=	1.402
3.	985	+		=	1.511
4.	773	+		=	1.267
5.	967	+		=	1.610
6.	563	+		=	895
7.	944	+		=	1.508
8.	805	+		=	1.383
9.	771	+		=	999
10.	772	+		=	1.383

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	620	+	359	=	979
2.	278	+	225	=	503
3.	414	+	262	=	676
4.	908	+	727	=	1.635
5.	968	+	610	=	1.578
6.	963	+	482	=	1.445
7.	685	+	648	=	1.333
8.	331	+	209	=	540
9.	796	+	761	=	1.557
10.	990	+	825	=	1.815

Oefening 2
1.	843	+	391	=	1.234
2.	752	+	205	=	957
3.	919	+	630	=	1.549
4.	401	+	253	=	654
5.	797	+	613	=	1.410
6.	826	+	740	=	1.566
7.	958	+	531	=	1.489
8.	362	+	280	=	642
9.	784	+	416	=	1.200
10.	865	+	842	=	1.707

Oefening 3
1.	453	+	433	=	886
2.	907	+	414	=	1.321
3.	858	+	266	=	1.124
4.	767	+	462	=	1.229
5.	709	+	237	=	946
6.	842	+	225	=	1.067
7.	620	+	606	=	1.226
8.	475	+	289	=	764
9.	713	+	446	=	1.159
10.	716	+	444	=	1.160

Oefening 4
1.	984	+	435	=	1.419
2.	989	+	413	=	1.402
3.	985	+	526	=	1.511
4.	773	+	494	=	1.267
5.	967	+	643	=	1.610
6.	563	+	332	=	895
7.	944	+	564	=	1.508
8.	805	+	578	=	1.383
9.	771	+	228	=	999
10.	772	+	611	=	1.383