Erbijsommen met vlekken tot en met 1.000

Erbijsommen

Oefening 1
1.	497	+		=	940
2.	336	+		=	601
3.	500	+		=	647
4.	498	+		=	812
5.	486	+		=	956
6.	240	+		=	478
7.	378	+		=	734
8.	440	+		=	599
9.	443	+		=	684
10.	403	+		=	696

Oefening 2
1.	374	+		=	476
2.	424	+		=	738
3.	339	+		=	612
4.	182	+		=	339
5.	468	+		=	787
6.	485	+		=	691
7.	372	+		=	609
8.	298	+		=	519
9.	259	+		=	458
10.	410	+		=	575

Oefening 3
1.	378	+		=	556
2.	357	+		=	666
3.	233	+		=	342
4.	485	+		=	798
5.	438	+		=	805
6.	491	+		=	929
7.	314	+		=	554
8.	386	+		=	743
9.	467	+		=	877
10.	390	+		=	639

Oefening 4
1.	220	+		=	434
2.	404	+		=	711
3.	289	+		=	414
4.	467	+		=	657
5.	486	+		=	646
6.	231	+		=	453
7.	301	+		=	468
8.	450	+		=	833
9.	483	+		=	680
10.	386	+		=	602

Erbijsommen met vlekken tot en met 1.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	497	+	443	=	940
2.	336	+	265	=	601
3.	500	+	147	=	647
4.	498	+	314	=	812
5.	486	+	470	=	956
6.	240	+	238	=	478
7.	378	+	356	=	734
8.	440	+	159	=	599
9.	443	+	241	=	684
10.	403	+	293	=	696

Oefening 2
1.	374	+	102	=	476
2.	424	+	314	=	738
3.	339	+	273	=	612
4.	182	+	157	=	339
5.	468	+	319	=	787
6.	485	+	206	=	691
7.	372	+	237	=	609
8.	298	+	221	=	519
9.	259	+	199	=	458
10.	410	+	165	=	575

Oefening 3
1.	378	+	178	=	556
2.	357	+	309	=	666
3.	233	+	109	=	342
4.	485	+	313	=	798
5.	438	+	367	=	805
6.	491	+	438	=	929
7.	314	+	240	=	554
8.	386	+	357	=	743
9.	467	+	410	=	877
10.	390	+	249	=	639

Oefening 4
1.	220	+	214	=	434
2.	404	+	307	=	711
3.	289	+	125	=	414
4.	467	+	190	=	657
5.	486	+	160	=	646
6.	231	+	222	=	453
7.	301	+	167	=	468
8.	450	+	383	=	833
9.	483	+	197	=	680
10.	386	+	216	=	602