Erbijsommen met vlekken tot en met 1.000

Erbijsommen

Oefening 1
1.	455	+		=	859
2.	439	+		=	627
3.	206	+		=	369
4.	475	+		=	730
5.	250	+		=	401
6.	314	+		=	570
7.	348	+		=	484
8.	281	+		=	391
9.	387	+		=	746
10.	475	+		=	888

Oefening 2
1.	440	+		=	605
2.	463	+		=	675
3.	247	+		=	483
4.	411	+		=	511
5.	472	+		=	760
6.	456	+		=	580
7.	244	+		=	379
8.	282	+		=	541
9.	240	+		=	453
10.	478	+		=	609

Oefening 3
1.	359	+		=	662
2.	277	+		=	467
3.	384	+		=	721
4.	171	+		=	279
5.	255	+		=	449
6.	484	+		=	812
7.	417	+		=	641
8.	255	+		=	508
9.	185	+		=	325
10.	270	+		=	487

Oefening 4
1.	179	+		=	281
2.	443	+		=	544
3.	175	+		=	301
4.	173	+		=	338
5.	353	+		=	589
6.	378	+		=	746
7.	394	+		=	644
8.	458	+		=	884
9.	413	+		=	793
10.	367	+		=	470

Erbijsommen met vlekken tot en met 1.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	455	+	404	=	859
2.	439	+	188	=	627
3.	206	+	163	=	369
4.	475	+	255	=	730
5.	250	+	151	=	401
6.	314	+	256	=	570
7.	348	+	136	=	484
8.	281	+	110	=	391
9.	387	+	359	=	746
10.	475	+	413	=	888

Oefening 2
1.	440	+	165	=	605
2.	463	+	212	=	675
3.	247	+	236	=	483
4.	411	+	100	=	511
5.	472	+	288	=	760
6.	456	+	124	=	580
7.	244	+	135	=	379
8.	282	+	259	=	541
9.	240	+	213	=	453
10.	478	+	131	=	609

Oefening 3
1.	359	+	303	=	662
2.	277	+	190	=	467
3.	384	+	337	=	721
4.	171	+	108	=	279
5.	255	+	194	=	449
6.	484	+	328	=	812
7.	417	+	224	=	641
8.	255	+	253	=	508
9.	185	+	140	=	325
10.	270	+	217	=	487

Oefening 4
1.	179	+	102	=	281
2.	443	+	101	=	544
3.	175	+	126	=	301
4.	173	+	165	=	338
5.	353	+	236	=	589
6.	378	+	368	=	746
7.	394	+	250	=	644
8.	458	+	426	=	884
9.	413	+	380	=	793
10.	367	+	103	=	470