Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	493	+		=	928
2.	957	+		=	1.495
3.	842	+		=	1.117
4.	659	+		=	954
5.	897	+		=	1.692
6.	414	+		=	800
7.	468	+		=	867
8.	822	+		=	1.274
9.	991	+		=	1.670
10.	977	+		=	1.715

Oefening 2
1.	699	+		=	1.237
2.	726	+		=	1.075
3.	890	+		=	1.715
4.	577	+		=	864
5.	976	+		=	1.493
6.	670	+		=	1.176
7.	390	+		=	714
8.	728	+		=	1.290
9.	943	+		=	1.609
10.	388	+		=	681

Oefening 3
1.	490	+		=	770
2.	866	+		=	1.294
3.	934	+		=	1.762
4.	895	+		=	1.503
5.	502	+		=	823
6.	988	+		=	1.664
7.	886	+		=	1.495
8.	735	+		=	1.371
9.	871	+		=	1.721
10.	979	+		=	1.909

Oefening 4
1.	988	+		=	1.195
2.	704	+		=	1.236
3.	933	+		=	1.728
4.	841	+		=	1.125
5.	777	+		=	1.401
6.	521	+		=	848
7.	809	+		=	1.579
8.	450	+		=	805
9.	542	+		=	801
10.	388	+		=	762

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	493	+	435	=	928
2.	957	+	538	=	1.495
3.	842	+	275	=	1.117
4.	659	+	295	=	954
5.	897	+	795	=	1.692
6.	414	+	386	=	800
7.	468	+	399	=	867
8.	822	+	452	=	1.274
9.	991	+	679	=	1.670
10.	977	+	738	=	1.715

Oefening 2
1.	699	+	538	=	1.237
2.	726	+	349	=	1.075
3.	890	+	825	=	1.715
4.	577	+	287	=	864
5.	976	+	517	=	1.493
6.	670	+	506	=	1.176
7.	390	+	324	=	714
8.	728	+	562	=	1.290
9.	943	+	666	=	1.609
10.	388	+	293	=	681

Oefening 3
1.	490	+	280	=	770
2.	866	+	428	=	1.294
3.	934	+	828	=	1.762
4.	895	+	608	=	1.503
5.	502	+	321	=	823
6.	988	+	676	=	1.664
7.	886	+	609	=	1.495
8.	735	+	636	=	1.371
9.	871	+	850	=	1.721
10.	979	+	930	=	1.909

Oefening 4
1.	988	+	207	=	1.195
2.	704	+	532	=	1.236
3.	933	+	795	=	1.728
4.	841	+	284	=	1.125
5.	777	+	624	=	1.401
6.	521	+	327	=	848
7.	809	+	770	=	1.579
8.	450	+	355	=	805
9.	542	+	259	=	801
10.	388	+	374	=	762