Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	521	+		=	830
2.	888	+		=	1.503
3.	738	+		=	1.377
4.	650	+		=	965
5.	776	+		=	1.346
6.	676	+		=	1.319
7.	888	+		=	1.257
8.	881	+		=	1.515
9.	387	+		=	689
10.	400	+		=	679

Oefening 2
1.	767	+		=	1.394
2.	525	+		=	752
3.	860	+		=	1.180
4.	508	+		=	964
5.	435	+		=	710
6.	789	+		=	1.086
7.	899	+		=	1.490
8.	887	+		=	1.172
9.	597	+		=	962
10.	830	+		=	1.607

Oefening 3
1.	793	+		=	1.345
2.	960	+		=	1.276
3.	319	+		=	525
4.	888	+		=	1.625
5.	736	+		=	1.220
6.	549	+		=	1.015
7.	479	+		=	833
8.	373	+		=	580
9.	520	+		=	982
10.	886	+		=	1.354

Oefening 4
1.	868	+		=	1.220
2.	339	+		=	668
3.	998	+		=	1.208
4.	989	+		=	1.436
5.	879	+		=	1.500
6.	732	+		=	1.282
7.	482	+		=	785
8.	808	+		=	1.252
9.	782	+		=	1.522
10.	953	+		=	1.300

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	521	+	309	=	830
2.	888	+	615	=	1.503
3.	738	+	639	=	1.377
4.	650	+	315	=	965
5.	776	+	570	=	1.346
6.	676	+	643	=	1.319
7.	888	+	369	=	1.257
8.	881	+	634	=	1.515
9.	387	+	302	=	689
10.	400	+	279	=	679

Oefening 2
1.	767	+	627	=	1.394
2.	525	+	227	=	752
3.	860	+	320	=	1.180
4.	508	+	456	=	964
5.	435	+	275	=	710
6.	789	+	297	=	1.086
7.	899	+	591	=	1.490
8.	887	+	285	=	1.172
9.	597	+	365	=	962
10.	830	+	777	=	1.607

Oefening 3
1.	793	+	552	=	1.345
2.	960	+	316	=	1.276
3.	319	+	206	=	525
4.	888	+	737	=	1.625
5.	736	+	484	=	1.220
6.	549	+	466	=	1.015
7.	479	+	354	=	833
8.	373	+	207	=	580
9.	520	+	462	=	982
10.	886	+	468	=	1.354

Oefening 4
1.	868	+	352	=	1.220
2.	339	+	329	=	668
3.	998	+	210	=	1.208
4.	989	+	447	=	1.436
5.	879	+	621	=	1.500
6.	732	+	550	=	1.282
7.	482	+	303	=	785
8.	808	+	444	=	1.252
9.	782	+	740	=	1.522
10.	953	+	347	=	1.300