Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	723	+		=	978
2.	819	+		=	1.101
3.	477	+		=	762
4.	662	+		=	1.219
5.	654	+		=	1.271
6.	339	+		=	637
7.	427	+		=	750
8.	912	+		=	1.816
9.	334	+		=	606
10.	777	+		=	1.320

Oefening 2
1.	601	+		=	1.181
2.	726	+		=	1.185
3.	811	+		=	1.509
4.	961	+		=	1.373
5.	309	+		=	565
6.	518	+		=	1.030
7.	609	+		=	1.058
8.	783	+		=	1.239
9.	840	+		=	1.416
10.	434	+		=	721

Oefening 3
1.	460	+		=	814
2.	759	+		=	1.477
3.	830	+		=	1.331
4.	969	+		=	1.933
5.	816	+		=	1.081
6.	813	+		=	1.572
7.	576	+		=	846
8.	841	+		=	1.534
9.	915	+		=	1.219
10.	894	+		=	1.447

Oefening 4
1.	970	+		=	1.742
2.	684	+		=	1.164
3.	970	+		=	1.558
4.	953	+		=	1.568
5.	692	+		=	983
6.	560	+		=	839
7.	962	+		=	1.745
8.	796	+		=	1.368
9.	875	+		=	1.178
10.	404	+		=	693

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	723	+	255	=	978
2.	819	+	282	=	1.101
3.	477	+	285	=	762
4.	662	+	557	=	1.219
5.	654	+	617	=	1.271
6.	339	+	298	=	637
7.	427	+	323	=	750
8.	912	+	904	=	1.816
9.	334	+	272	=	606
10.	777	+	543	=	1.320

Oefening 2
1.	601	+	580	=	1.181
2.	726	+	459	=	1.185
3.	811	+	698	=	1.509
4.	961	+	412	=	1.373
5.	309	+	256	=	565
6.	518	+	512	=	1.030
7.	609	+	449	=	1.058
8.	783	+	456	=	1.239
9.	840	+	576	=	1.416
10.	434	+	287	=	721

Oefening 3
1.	460	+	354	=	814
2.	759	+	718	=	1.477
3.	830	+	501	=	1.331
4.	969	+	964	=	1.933
5.	816	+	265	=	1.081
6.	813	+	759	=	1.572
7.	576	+	270	=	846
8.	841	+	693	=	1.534
9.	915	+	304	=	1.219
10.	894	+	553	=	1.447

Oefening 4
1.	970	+	772	=	1.742
2.	684	+	480	=	1.164
3.	970	+	588	=	1.558
4.	953	+	615	=	1.568
5.	692	+	291	=	983
6.	560	+	279	=	839
7.	962	+	783	=	1.745
8.	796	+	572	=	1.368
9.	875	+	303	=	1.178
10.	404	+	289	=	693