Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	557	+		=	978
2.	777	+		=	1.254
3.	854	+		=	1.057
4.	827	+		=	1.328
5.	804	+		=	1.504
6.	730	+		=	1.143
7.	968	+		=	1.474
8.	971	+		=	1.654
9.	542	+		=	825
10.	757	+		=	1.480

Oefening 2
1.	842	+		=	1.313
2.	712	+		=	916
3.	595	+		=	1.036
4.	823	+		=	1.253
5.	887	+		=	1.100
6.	429	+		=	674
7.	654	+		=	920
8.	938	+		=	1.332
9.	425	+		=	762
10.	566	+		=	1.015

Oefening 3
1.	360	+		=	669
2.	420	+		=	703
3.	803	+		=	1.570
4.	965	+		=	1.407
5.	848	+		=	1.093
6.	477	+		=	931
7.	301	+		=	578
8.	569	+		=	827
9.	582	+		=	866
10.	875	+		=	1.333

Oefening 4
1.	543	+		=	1.012
2.	696	+		=	973
3.	493	+		=	910
4.	282	+		=	526
5.	280	+		=	525
6.	941	+		=	1.514
7.	910	+		=	1.439
8.	347	+		=	579
9.	988	+		=	1.671
10.	770	+		=	1.137

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	557	+	421	=	978
2.	777	+	477	=	1.254
3.	854	+	203	=	1.057
4.	827	+	501	=	1.328
5.	804	+	700	=	1.504
6.	730	+	413	=	1.143
7.	968	+	506	=	1.474
8.	971	+	683	=	1.654
9.	542	+	283	=	825
10.	757	+	723	=	1.480

Oefening 2
1.	842	+	471	=	1.313
2.	712	+	204	=	916
3.	595	+	441	=	1.036
4.	823	+	430	=	1.253
5.	887	+	213	=	1.100
6.	429	+	245	=	674
7.	654	+	266	=	920
8.	938	+	394	=	1.332
9.	425	+	337	=	762
10.	566	+	449	=	1.015

Oefening 3
1.	360	+	309	=	669
2.	420	+	283	=	703
3.	803	+	767	=	1.570
4.	965	+	442	=	1.407
5.	848	+	245	=	1.093
6.	477	+	454	=	931
7.	301	+	277	=	578
8.	569	+	258	=	827
9.	582	+	284	=	866
10.	875	+	458	=	1.333

Oefening 4
1.	543	+	469	=	1.012
2.	696	+	277	=	973
3.	493	+	417	=	910
4.	282	+	244	=	526
5.	280	+	245	=	525
6.	941	+	573	=	1.514
7.	910	+	529	=	1.439
8.	347	+	232	=	579
9.	988	+	683	=	1.671
10.	770	+	367	=	1.137