Erbijsommen met vlekken tot en met 1.000

Erbijsommen

Oefening 1
1.	452	+		=	869
2.	297	+		=	543
3.	494	+		=	668
4.	408	+		=	695
5.	259	+		=	490
6.	318	+		=	471
7.	246	+		=	469
8.	242	+		=	453
9.	486	+		=	681
10.	496	+		=	871

Oefening 2
1.	495	+		=	645
2.	422	+		=	610
3.	251	+		=	490
4.	408	+		=	697
5.	464	+		=	862
6.	409	+		=	575
7.	238	+		=	428
8.	173	+		=	312
9.	455	+		=	707
10.	339	+		=	565

Oefening 3
1.	421	+		=	795
2.	278	+		=	459
3.	412	+		=	534
4.	372	+		=	524
5.	483	+		=	760
6.	291	+		=	430
7.	469	+		=	699
8.	493	+		=	811
9.	478	+		=	887
10.	317	+		=	620

Oefening 4
1.	358	+		=	686
2.	378	+		=	614
3.	267	+		=	401
4.	304	+		=	453
5.	447	+		=	597
6.	154	+		=	262
7.	224	+		=	393
8.	406	+		=	653
9.	468	+		=	697
10.	492	+		=	836

Erbijsommen met vlekken tot en met 1.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	452	+	417	=	869
2.	297	+	246	=	543
3.	494	+	174	=	668
4.	408	+	287	=	695
5.	259	+	231	=	490
6.	318	+	153	=	471
7.	246	+	223	=	469
8.	242	+	211	=	453
9.	486	+	195	=	681
10.	496	+	375	=	871

Oefening 2
1.	495	+	150	=	645
2.	422	+	188	=	610
3.	251	+	239	=	490
4.	408	+	289	=	697
5.	464	+	398	=	862
6.	409	+	166	=	575
7.	238	+	190	=	428
8.	173	+	139	=	312
9.	455	+	252	=	707
10.	339	+	226	=	565

Oefening 3
1.	421	+	374	=	795
2.	278	+	181	=	459
3.	412	+	122	=	534
4.	372	+	152	=	524
5.	483	+	277	=	760
6.	291	+	139	=	430
7.	469	+	230	=	699
8.	493	+	318	=	811
9.	478	+	409	=	887
10.	317	+	303	=	620

Oefening 4
1.	358	+	328	=	686
2.	378	+	236	=	614
3.	267	+	134	=	401
4.	304	+	149	=	453
5.	447	+	150	=	597
6.	154	+	108	=	262
7.	224	+	169	=	393
8.	406	+	247	=	653
9.	468	+	229	=	697
10.	492	+	344	=	836