Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	920	+		=	1.485
2.	977	+		=	1.315
3.	573	+		=	925
4.	976	+		=	1.858
5.	682	+		=	1.307
6.	640	+		=	1.017
7.	869	+		=	1.553
8.	972	+		=	1.234
9.	812	+		=	1.146
10.	803	+		=	1.170

Oefening 2
1.	573	+		=	966
2.	453	+		=	678
3.	893	+		=	1.422
4.	740	+		=	1.436
5.	850	+		=	1.671
6.	869	+		=	1.601
7.	430	+		=	845
8.	660	+		=	1.187
9.	962	+		=	1.313
10.	433	+		=	787

Oefening 3
1.	457	+		=	869
2.	625	+		=	1.138
3.	910	+		=	1.551
4.	923	+		=	1.145
5.	626	+		=	1.084
6.	958	+		=	1.639
7.	918	+		=	1.587
8.	756	+		=	1.266
9.	538	+		=	888
10.	741	+		=	1.162

Oefening 4
1.	820	+		=	1.234
2.	974	+		=	1.403
3.	571	+		=	941
4.	909	+		=	1.331
5.	990	+		=	1.559
6.	530	+		=	986
7.	460	+		=	683
8.	743	+		=	1.346
9.	969	+		=	1.553
10.	872	+		=	1.085

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	920	+	565	=	1.485
2.	977	+	338	=	1.315
3.	573	+	352	=	925
4.	976	+	882	=	1.858
5.	682	+	625	=	1.307
6.	640	+	377	=	1.017
7.	869	+	684	=	1.553
8.	972	+	262	=	1.234
9.	812	+	334	=	1.146
10.	803	+	367	=	1.170

Oefening 2
1.	573	+	393	=	966
2.	453	+	225	=	678
3.	893	+	529	=	1.422
4.	740	+	696	=	1.436
5.	850	+	821	=	1.671
6.	869	+	732	=	1.601
7.	430	+	415	=	845
8.	660	+	527	=	1.187
9.	962	+	351	=	1.313
10.	433	+	354	=	787

Oefening 3
1.	457	+	412	=	869
2.	625	+	513	=	1.138
3.	910	+	641	=	1.551
4.	923	+	222	=	1.145
5.	626	+	458	=	1.084
6.	958	+	681	=	1.639
7.	918	+	669	=	1.587
8.	756	+	510	=	1.266
9.	538	+	350	=	888
10.	741	+	421	=	1.162

Oefening 4
1.	820	+	414	=	1.234
2.	974	+	429	=	1.403
3.	571	+	370	=	941
4.	909	+	422	=	1.331
5.	990	+	569	=	1.559
6.	530	+	456	=	986
7.	460	+	223	=	683
8.	743	+	603	=	1.346
9.	969	+	584	=	1.553
10.	872	+	213	=	1.085