Erbijsommen met vlekken tot en met 1.000

Erbijsommen

Oefening 1
1.	393	+		=	502
2.	410	+		=	581
3.	385	+		=	544
4.	146	+		=	291
5.	468	+		=	641
6.	356	+		=	479
7.	321	+		=	619
8.	487	+		=	885
9.	374	+		=	650
10.	273	+		=	485

Oefening 2
1.	450	+		=	625
2.	198	+		=	344
3.	156	+		=	307
4.	278	+		=	449
5.	304	+		=	556
6.	374	+		=	561
7.	460	+		=	789
8.	482	+		=	730
9.	448	+		=	649
10.	442	+		=	713

Oefening 3
1.	421	+		=	789
2.	404	+		=	622
3.	483	+		=	922
4.	216	+		=	351
5.	221	+		=	435
6.	373	+		=	543
7.	345	+		=	602
8.	346	+		=	464
9.	401	+		=	782
10.	364	+		=	480

Oefening 4
1.	365	+		=	646
2.	215	+		=	388
3.	139	+		=	241
4.	485	+		=	681
5.	468	+		=	655
6.	374	+		=	475
7.	393	+		=	724
8.	335	+		=	639
9.	467	+		=	671
10.	299	+		=	444

Erbijsommen met vlekken tot en met 1.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	393	+	109	=	502
2.	410	+	171	=	581
3.	385	+	159	=	544
4.	146	+	145	=	291
5.	468	+	173	=	641
6.	356	+	123	=	479
7.	321	+	298	=	619
8.	487	+	398	=	885
9.	374	+	276	=	650
10.	273	+	212	=	485

Oefening 2
1.	450	+	175	=	625
2.	198	+	146	=	344
3.	156	+	151	=	307
4.	278	+	171	=	449
5.	304	+	252	=	556
6.	374	+	187	=	561
7.	460	+	329	=	789
8.	482	+	248	=	730
9.	448	+	201	=	649
10.	442	+	271	=	713

Oefening 3
1.	421	+	368	=	789
2.	404	+	218	=	622
3.	483	+	439	=	922
4.	216	+	135	=	351
5.	221	+	214	=	435
6.	373	+	170	=	543
7.	345	+	257	=	602
8.	346	+	118	=	464
9.	401	+	381	=	782
10.	364	+	116	=	480

Oefening 4
1.	365	+	281	=	646
2.	215	+	173	=	388
3.	139	+	102	=	241
4.	485	+	196	=	681
5.	468	+	187	=	655
6.	374	+	101	=	475
7.	393	+	331	=	724
8.	335	+	304	=	639
9.	467	+	204	=	671
10.	299	+	145	=	444