Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	489	+		=	939
2.	615	+		=	977
3.	948	+		=	1.467
4.	922	+		=	1.417
5.	959	+		=	1.886
6.	840	+		=	1.171
7.	752	+		=	1.198
8.	451	+		=	864
9.	954	+		=	1.315
10.	822	+		=	1.469

Oefening 2
1.	890	+		=	1.477
2.	902	+		=	1.638
3.	886	+		=	1.401
4.	687	+		=	1.015
5.	976	+		=	1.553
6.	859	+		=	1.087
7.	489	+		=	740
8.	687	+		=	1.020
9.	987	+		=	1.362
10.	540	+		=	805

Oefening 3
1.	601	+		=	980
2.	990	+		=	1.904
3.	977	+		=	1.579
4.	788	+		=	1.389
5.	984	+		=	1.451
6.	501	+		=	715
7.	666	+		=	914
8.	775	+		=	1.209
9.	960	+		=	1.224
10.	964	+		=	1.670

Oefening 4
1.	872	+		=	1.167
2.	983	+		=	1.293
3.	427	+		=	700
4.	871	+		=	1.662
5.	883	+		=	1.427
6.	705	+		=	1.090
7.	650	+		=	1.024
8.	756	+		=	1.085
9.	923	+		=	1.745
10.	820	+		=	1.369

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	489	+	450	=	939
2.	615	+	362	=	977
3.	948	+	519	=	1.467
4.	922	+	495	=	1.417
5.	959	+	927	=	1.886
6.	840	+	331	=	1.171
7.	752	+	446	=	1.198
8.	451	+	413	=	864
9.	954	+	361	=	1.315
10.	822	+	647	=	1.469

Oefening 2
1.	890	+	587	=	1.477
2.	902	+	736	=	1.638
3.	886	+	515	=	1.401
4.	687	+	328	=	1.015
5.	976	+	577	=	1.553
6.	859	+	228	=	1.087
7.	489	+	251	=	740
8.	687	+	333	=	1.020
9.	987	+	375	=	1.362
10.	540	+	265	=	805

Oefening 3
1.	601	+	379	=	980
2.	990	+	914	=	1.904
3.	977	+	602	=	1.579
4.	788	+	601	=	1.389
5.	984	+	467	=	1.451
6.	501	+	214	=	715
7.	666	+	248	=	914
8.	775	+	434	=	1.209
9.	960	+	264	=	1.224
10.	964	+	706	=	1.670

Oefening 4
1.	872	+	295	=	1.167
2.	983	+	310	=	1.293
3.	427	+	273	=	700
4.	871	+	791	=	1.662
5.	883	+	544	=	1.427
6.	705	+	385	=	1.090
7.	650	+	374	=	1.024
8.	756	+	329	=	1.085
9.	923	+	822	=	1.745
10.	820	+	549	=	1.369