Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	428	+		=	837
2.	337	+		=	666
3.	480	+		=	869
4.	770	+		=	1.308
5.	362	+		=	611
6.	988	+		=	1.373
7.	883	+		=	1.252
8.	928	+		=	1.839
9.	889	+		=	1.239
10.	666	+		=	1.010

Oefening 2
1.	754	+		=	1.481
2.	915	+		=	1.663
3.	735	+		=	1.073
4.	577	+		=	1.145
5.	448	+		=	826
6.	668	+		=	1.254
7.	903	+		=	1.300
8.	744	+		=	1.217
9.	655	+		=	974
10.	712	+		=	1.117

Oefening 3
1.	664	+		=	975
2.	719	+		=	1.401
3.	684	+		=	1.025
4.	743	+		=	1.445
5.	890	+		=	1.624
6.	964	+		=	1.236
7.	517	+		=	733
8.	521	+		=	835
9.	999	+		=	1.815
10.	825	+		=	1.306

Oefening 4
1.	945	+		=	1.823
2.	380	+		=	716
3.	842	+		=	1.358
4.	831	+		=	1.129
5.	479	+		=	916
6.	467	+		=	816
7.	895	+		=	1.275
8.	517	+		=	794
9.	995	+		=	1.465
10.	940	+		=	1.552

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	428	+	409	=	837
2.	337	+	329	=	666
3.	480	+	389	=	869
4.	770	+	538	=	1.308
5.	362	+	249	=	611
6.	988	+	385	=	1.373
7.	883	+	369	=	1.252
8.	928	+	911	=	1.839
9.	889	+	350	=	1.239
10.	666	+	344	=	1.010

Oefening 2
1.	754	+	727	=	1.481
2.	915	+	748	=	1.663
3.	735	+	338	=	1.073
4.	577	+	568	=	1.145
5.	448	+	378	=	826
6.	668	+	586	=	1.254
7.	903	+	397	=	1.300
8.	744	+	473	=	1.217
9.	655	+	319	=	974
10.	712	+	405	=	1.117

Oefening 3
1.	664	+	311	=	975
2.	719	+	682	=	1.401
3.	684	+	341	=	1.025
4.	743	+	702	=	1.445
5.	890	+	734	=	1.624
6.	964	+	272	=	1.236
7.	517	+	216	=	733
8.	521	+	314	=	835
9.	999	+	816	=	1.815
10.	825	+	481	=	1.306

Oefening 4
1.	945	+	878	=	1.823
2.	380	+	336	=	716
3.	842	+	516	=	1.358
4.	831	+	298	=	1.129
5.	479	+	437	=	916
6.	467	+	349	=	816
7.	895	+	380	=	1.275
8.	517	+	277	=	794
9.	995	+	470	=	1.465
10.	940	+	612	=	1.552