Erbijsommen met vlekken tot en met 1.000

Erbijsommen

Oefening 1
1.	189	+		=	314
2.	435	+		=	867
3.	450	+		=	900
4.	475	+		=	940
5.	483	+		=	812
6.	475	+		=	629
7.	400	+		=	641
8.	408	+		=	741
9.	323	+		=	426
10.	429	+		=	767

Oefening 2
1.	408	+		=	812
2.	447	+		=	867
3.	454	+		=	606
4.	486	+		=	814
5.	164	+		=	312
6.	454	+		=	785
7.	200	+		=	362
8.	471	+		=	752
9.	418	+		=	581
10.	222	+		=	439

Oefening 3
1.	450	+		=	676
2.	381	+		=	758
3.	475	+		=	917
4.	380	+		=	506
5.	409	+		=	585
6.	482	+		=	812
7.	402	+		=	711
8.	365	+		=	645
9.	492	+		=	614
10.	362	+		=	719

Oefening 4
1.	220	+		=	431
2.	272	+		=	447
3.	422	+		=	712
4.	453	+		=	699
5.	401	+		=	558
6.	482	+		=	638
7.	188	+		=	291
8.	309	+		=	546
9.	485	+		=	811
10.	272	+		=	468

Erbijsommen met vlekken tot en met 1.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	189	+	125	=	314
2.	435	+	432	=	867
3.	450	+	450	=	900
4.	475	+	465	=	940
5.	483	+	329	=	812
6.	475	+	154	=	629
7.	400	+	241	=	641
8.	408	+	333	=	741
9.	323	+	103	=	426
10.	429	+	338	=	767

Oefening 2
1.	408	+	404	=	812
2.	447	+	420	=	867
3.	454	+	152	=	606
4.	486	+	328	=	814
5.	164	+	148	=	312
6.	454	+	331	=	785
7.	200	+	162	=	362
8.	471	+	281	=	752
9.	418	+	163	=	581
10.	222	+	217	=	439

Oefening 3
1.	450	+	226	=	676
2.	381	+	377	=	758
3.	475	+	442	=	917
4.	380	+	126	=	506
5.	409	+	176	=	585
6.	482	+	330	=	812
7.	402	+	309	=	711
8.	365	+	280	=	645
9.	492	+	122	=	614
10.	362	+	357	=	719

Oefening 4
1.	220	+	211	=	431
2.	272	+	175	=	447
3.	422	+	290	=	712
4.	453	+	246	=	699
5.	401	+	157	=	558
6.	482	+	156	=	638
7.	188	+	103	=	291
8.	309	+	237	=	546
9.	485	+	326	=	811
10.	272	+	196	=	468