Erbijsommen met vlekken tot en met 1.000

Erbijsommen

Oefening 1
1.	438	+		=	685
2.	321	+		=	617
3.	180	+		=	287
4.	451	+		=	775
5.	372	+		=	713
6.	398	+		=	525
7.	331	+		=	645
8.	256	+		=	450
9.	369	+		=	654
10.	139	+		=	243

Oefening 2
1.	433	+		=	729
2.	308	+		=	576
3.	163	+		=	291
4.	469	+		=	873
5.	367	+		=	538
6.	113	+		=	221
7.	498	+		=	995
8.	426	+		=	793
9.	414	+		=	517
10.	481	+		=	765

Oefening 3
1.	338	+		=	524
2.	460	+		=	785
3.	242	+		=	468
4.	471	+		=	939
5.	467	+		=	647
6.	364	+		=	718
7.	406	+		=	567
8.	292	+		=	521
9.	419	+		=	758
10.	415	+		=	778

Oefening 4
1.	393	+		=	769
2.	395	+		=	636
3.	281	+		=	506
4.	368	+		=	648
5.	344	+		=	506
6.	227	+		=	426
7.	418	+		=	566
8.	451	+		=	873
9.	349	+		=	690
10.	428	+		=	709

Erbijsommen met vlekken tot en met 1.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	438	+	247	=	685
2.	321	+	296	=	617
3.	180	+	107	=	287
4.	451	+	324	=	775
5.	372	+	341	=	713
6.	398	+	127	=	525
7.	331	+	314	=	645
8.	256	+	194	=	450
9.	369	+	285	=	654
10.	139	+	104	=	243

Oefening 2
1.	433	+	296	=	729
2.	308	+	268	=	576
3.	163	+	128	=	291
4.	469	+	404	=	873
5.	367	+	171	=	538
6.	113	+	108	=	221
7.	498	+	497	=	995
8.	426	+	367	=	793
9.	414	+	103	=	517
10.	481	+	284	=	765

Oefening 3
1.	338	+	186	=	524
2.	460	+	325	=	785
3.	242	+	226	=	468
4.	471	+	468	=	939
5.	467	+	180	=	647
6.	364	+	354	=	718
7.	406	+	161	=	567
8.	292	+	229	=	521
9.	419	+	339	=	758
10.	415	+	363	=	778

Oefening 4
1.	393	+	376	=	769
2.	395	+	241	=	636
3.	281	+	225	=	506
4.	368	+	280	=	648
5.	344	+	162	=	506
6.	227	+	199	=	426
7.	418	+	148	=	566
8.	451	+	422	=	873
9.	349	+	341	=	690
10.	428	+	281	=	709