Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	778	+		=	1.487
2.	404	+		=	610
3.	428	+		=	823
4.	548	+		=	802
5.	632	+		=	1.070
6.	500	+		=	795
7.	523	+		=	850
8.	909	+		=	1.447
9.	854	+		=	1.171
10.	814	+		=	1.090

Oefening 2
1.	824	+		=	1.071
2.	497	+		=	990
3.	590	+		=	1.019
4.	668	+		=	904
5.	597	+		=	815
6.	995	+		=	1.888
7.	449	+		=	710
8.	770	+		=	1.511
9.	968	+		=	1.416
10.	923	+		=	1.410

Oefening 3
1.	883	+		=	1.399
2.	848	+		=	1.677
3.	984	+		=	1.197
4.	869	+		=	1.613
5.	746	+		=	1.255
6.	624	+		=	1.177
7.	706	+		=	988
8.	748	+		=	1.424
9.	994	+		=	1.850
10.	522	+		=	1.024

Oefening 4
1.	564	+		=	1.057
2.	651	+		=	1.217
3.	878	+		=	1.668
4.	706	+		=	1.374
5.	776	+		=	1.188
6.	668	+		=	1.106
7.	368	+		=	586
8.	656	+		=	1.149
9.	977	+		=	1.282
10.	938	+		=	1.814

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	778	+	709	=	1.487
2.	404	+	206	=	610
3.	428	+	395	=	823
4.	548	+	254	=	802
5.	632	+	438	=	1.070
6.	500	+	295	=	795
7.	523	+	327	=	850
8.	909	+	538	=	1.447
9.	854	+	317	=	1.171
10.	814	+	276	=	1.090

Oefening 2
1.	824	+	247	=	1.071
2.	497	+	493	=	990
3.	590	+	429	=	1.019
4.	668	+	236	=	904
5.	597	+	218	=	815
6.	995	+	893	=	1.888
7.	449	+	261	=	710
8.	770	+	741	=	1.511
9.	968	+	448	=	1.416
10.	923	+	487	=	1.410

Oefening 3
1.	883	+	516	=	1.399
2.	848	+	829	=	1.677
3.	984	+	213	=	1.197
4.	869	+	744	=	1.613
5.	746	+	509	=	1.255
6.	624	+	553	=	1.177
7.	706	+	282	=	988
8.	748	+	676	=	1.424
9.	994	+	856	=	1.850
10.	522	+	502	=	1.024

Oefening 4
1.	564	+	493	=	1.057
2.	651	+	566	=	1.217
3.	878	+	790	=	1.668
4.	706	+	668	=	1.374
5.	776	+	412	=	1.188
6.	668	+	438	=	1.106
7.	368	+	218	=	586
8.	656	+	493	=	1.149
9.	977	+	305	=	1.282
10.	938	+	876	=	1.814