Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	980	+		=	1.622
2.	902	+		=	1.281
3.	609	+		=	1.213
4.	810	+		=	1.180
5.	710	+		=	1.149
6.	826	+		=	1.541
7.	748	+		=	1.304
8.	995	+		=	1.299
9.	648	+		=	876
10.	967	+		=	1.446

Oefening 2
1.	976	+		=	1.363
2.	630	+		=	1.156
3.	944	+		=	1.451
4.	828	+		=	1.111
5.	752	+		=	1.015
6.	989	+		=	1.874
7.	844	+		=	1.047
8.	696	+		=	1.267
9.	805	+		=	1.538
10.	971	+		=	1.685

Oefening 3
1.	688	+		=	1.047
2.	997	+		=	1.436
3.	288	+		=	491
4.	897	+		=	1.715
5.	336	+		=	553
6.	496	+		=	844
7.	931	+		=	1.375
8.	826	+		=	1.651
9.	919	+		=	1.613
10.	959	+		=	1.738

Oefening 4
1.	320	+		=	576
2.	594	+		=	877
3.	864	+		=	1.634
4.	793	+		=	1.175
5.	501	+		=	846
6.	921	+		=	1.630
7.	924	+		=	1.795
8.	667	+		=	1.312
9.	483	+		=	825
10.	749	+		=	1.261

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	980	+	642	=	1.622
2.	902	+	379	=	1.281
3.	609	+	604	=	1.213
4.	810	+	370	=	1.180
5.	710	+	439	=	1.149
6.	826	+	715	=	1.541
7.	748	+	556	=	1.304
8.	995	+	304	=	1.299
9.	648	+	228	=	876
10.	967	+	479	=	1.446

Oefening 2
1.	976	+	387	=	1.363
2.	630	+	526	=	1.156
3.	944	+	507	=	1.451
4.	828	+	283	=	1.111
5.	752	+	263	=	1.015
6.	989	+	885	=	1.874
7.	844	+	203	=	1.047
8.	696	+	571	=	1.267
9.	805	+	733	=	1.538
10.	971	+	714	=	1.685

Oefening 3
1.	688	+	359	=	1.047
2.	997	+	439	=	1.436
3.	288	+	203	=	491
4.	897	+	818	=	1.715
5.	336	+	217	=	553
6.	496	+	348	=	844
7.	931	+	444	=	1.375
8.	826	+	825	=	1.651
9.	919	+	694	=	1.613
10.	959	+	779	=	1.738

Oefening 4
1.	320	+	256	=	576
2.	594	+	283	=	877
3.	864	+	770	=	1.634
4.	793	+	382	=	1.175
5.	501	+	345	=	846
6.	921	+	709	=	1.630
7.	924	+	871	=	1.795
8.	667	+	645	=	1.312
9.	483	+	342	=	825
10.	749	+	512	=	1.261