Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	978	+		=	1.785
2.	596	+		=	1.005
3.	790	+		=	1.195
4.	980	+		=	1.548
5.	913	+		=	1.550
6.	536	+		=	821
7.	990	+		=	1.427
8.	716	+		=	1.213
9.	598	+		=	1.152
10.	432	+		=	838

Oefening 2
1.	280	+		=	543
2.	446	+		=	823
3.	893	+		=	1.267
4.	966	+		=	1.875
5.	926	+		=	1.794
6.	846	+		=	1.335
7.	931	+		=	1.483
8.	772	+		=	1.406
9.	911	+		=	1.516
10.	797	+		=	1.257

Oefening 3
1.	803	+		=	1.141
2.	790	+		=	1.507
3.	314	+		=	603
4.	535	+		=	849
5.	792	+		=	1.146
6.	957	+		=	1.541
7.	833	+		=	1.555
8.	898	+		=	1.598
9.	593	+		=	1.020
10.	948	+		=	1.250

Oefening 4
1.	453	+		=	871
2.	875	+		=	1.314
3.	927	+		=	1.411
4.	532	+		=	941
5.	731	+		=	1.076
6.	369	+		=	625
7.	776	+		=	997
8.	890	+		=	1.484
9.	825	+		=	1.190
10.	894	+		=	1.575

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	978	+	807	=	1.785
2.	596	+	409	=	1.005
3.	790	+	405	=	1.195
4.	980	+	568	=	1.548
5.	913	+	637	=	1.550
6.	536	+	285	=	821
7.	990	+	437	=	1.427
8.	716	+	497	=	1.213
9.	598	+	554	=	1.152
10.	432	+	406	=	838

Oefening 2
1.	280	+	263	=	543
2.	446	+	377	=	823
3.	893	+	374	=	1.267
4.	966	+	909	=	1.875
5.	926	+	868	=	1.794
6.	846	+	489	=	1.335
7.	931	+	552	=	1.483
8.	772	+	634	=	1.406
9.	911	+	605	=	1.516
10.	797	+	460	=	1.257

Oefening 3
1.	803	+	338	=	1.141
2.	790	+	717	=	1.507
3.	314	+	289	=	603
4.	535	+	314	=	849
5.	792	+	354	=	1.146
6.	957	+	584	=	1.541
7.	833	+	722	=	1.555
8.	898	+	700	=	1.598
9.	593	+	427	=	1.020
10.	948	+	302	=	1.250

Oefening 4
1.	453	+	418	=	871
2.	875	+	439	=	1.314
3.	927	+	484	=	1.411
4.	532	+	409	=	941
5.	731	+	345	=	1.076
6.	369	+	256	=	625
7.	776	+	221	=	997
8.	890	+	594	=	1.484
9.	825	+	365	=	1.190
10.	894	+	681	=	1.575