Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	311	+		=	517
2.	872	+		=	1.715
3.	667	+		=	1.069
4.	351	+		=	617
5.	866	+		=	1.151
6.	822	+		=	1.608
7.	797	+		=	1.302
8.	846	+		=	1.503
9.	725	+		=	1.242
10.	515	+		=	1.016

Oefening 2
1.	905	+		=	1.491
2.	990	+		=	1.774
3.	827	+		=	1.390
4.	824	+		=	1.047
5.	900	+		=	1.475
6.	288	+		=	501
7.	386	+		=	663
8.	724	+		=	1.119
9.	772	+		=	1.204
10.	754	+		=	1.446

Oefening 3
1.	506	+		=	866
2.	869	+		=	1.676
3.	944	+		=	1.273
4.	666	+		=	937
5.	841	+		=	1.534
6.	835	+		=	1.143
7.	518	+		=	895
8.	635	+		=	925
9.	783	+		=	1.091
10.	766	+		=	1.305

Oefening 4
1.	908	+		=	1.396
2.	908	+		=	1.743
3.	747	+		=	1.220
4.	893	+		=	1.146
5.	676	+		=	1.348
6.	356	+		=	608
7.	612	+		=	927
8.	478	+		=	942
9.	850	+		=	1.159
10.	319	+		=	616

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	311	+	206	=	517
2.	872	+	843	=	1.715
3.	667	+	402	=	1.069
4.	351	+	266	=	617
5.	866	+	285	=	1.151
6.	822	+	786	=	1.608
7.	797	+	505	=	1.302
8.	846	+	657	=	1.503
9.	725	+	517	=	1.242
10.	515	+	501	=	1.016

Oefening 2
1.	905	+	586	=	1.491
2.	990	+	784	=	1.774
3.	827	+	563	=	1.390
4.	824	+	223	=	1.047
5.	900	+	575	=	1.475
6.	288	+	213	=	501
7.	386	+	277	=	663
8.	724	+	395	=	1.119
9.	772	+	432	=	1.204
10.	754	+	692	=	1.446

Oefening 3
1.	506	+	360	=	866
2.	869	+	807	=	1.676
3.	944	+	329	=	1.273
4.	666	+	271	=	937
5.	841	+	693	=	1.534
6.	835	+	308	=	1.143
7.	518	+	377	=	895
8.	635	+	290	=	925
9.	783	+	308	=	1.091
10.	766	+	539	=	1.305

Oefening 4
1.	908	+	488	=	1.396
2.	908	+	835	=	1.743
3.	747	+	473	=	1.220
4.	893	+	253	=	1.146
5.	676	+	672	=	1.348
6.	356	+	252	=	608
7.	612	+	315	=	927
8.	478	+	464	=	942
9.	850	+	309	=	1.159
10.	319	+	297	=	616