Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	612	+		=	842
2.	390	+		=	661
3.	857	+		=	1.333
4.	760	+		=	1.327
5.	842	+		=	1.108
6.	586	+		=	1.043
7.	423	+		=	788
8.	761	+		=	1.115
9.	652	+		=	873
10.	361	+		=	680

Oefening 2
1.	656	+		=	1.086
2.	870	+		=	1.664
3.	806	+		=	1.254
4.	321	+		=	558
5.	791	+		=	1.116
6.	552	+		=	937
7.	918	+		=	1.450
8.	430	+		=	854
9.	827	+		=	1.264
10.	626	+		=	1.246

Oefening 3
1.	454	+		=	670
2.	969	+		=	1.293
3.	756	+		=	1.283
4.	921	+		=	1.786
5.	598	+		=	1.106
6.	837	+		=	1.338
7.	958	+		=	1.544
8.	798	+		=	1.080
9.	843	+		=	1.611
10.	785	+		=	1.431

Oefening 4
1.	529	+		=	771
2.	981	+		=	1.759
3.	707	+		=	1.031
4.	471	+		=	884
5.	865	+		=	1.274
6.	557	+		=	820
7.	788	+		=	1.366
8.	594	+		=	1.049
9.	795	+		=	1.415
10.	557	+		=	910

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	612	+	230	=	842
2.	390	+	271	=	661
3.	857	+	476	=	1.333
4.	760	+	567	=	1.327
5.	842	+	266	=	1.108
6.	586	+	457	=	1.043
7.	423	+	365	=	788
8.	761	+	354	=	1.115
9.	652	+	221	=	873
10.	361	+	319	=	680

Oefening 2
1.	656	+	430	=	1.086
2.	870	+	794	=	1.664
3.	806	+	448	=	1.254
4.	321	+	237	=	558
5.	791	+	325	=	1.116
6.	552	+	385	=	937
7.	918	+	532	=	1.450
8.	430	+	424	=	854
9.	827	+	437	=	1.264
10.	626	+	620	=	1.246

Oefening 3
1.	454	+	216	=	670
2.	969	+	324	=	1.293
3.	756	+	527	=	1.283
4.	921	+	865	=	1.786
5.	598	+	508	=	1.106
6.	837	+	501	=	1.338
7.	958	+	586	=	1.544
8.	798	+	282	=	1.080
9.	843	+	768	=	1.611
10.	785	+	646	=	1.431

Oefening 4
1.	529	+	242	=	771
2.	981	+	778	=	1.759
3.	707	+	324	=	1.031
4.	471	+	413	=	884
5.	865	+	409	=	1.274
6.	557	+	263	=	820
7.	788	+	578	=	1.366
8.	594	+	455	=	1.049
9.	795	+	620	=	1.415
10.	557	+	353	=	910