Erbijsommen met vlekken tot en met 1.000

Erbijsommen

Oefening 1
1.	211	+		=	399
2.	351	+		=	538
3.	389	+		=	772
4.	298	+		=	468
5.	314	+		=	556
6.	240	+		=	439
7.	288	+		=	495
8.	467	+		=	593
9.	231	+		=	376
10.	429	+		=	549

Oefening 2
1.	404	+		=	782
2.	181	+		=	311
3.	400	+		=	702
4.	378	+		=	727
5.	495	+		=	685
6.	186	+		=	332
7.	279	+		=	457
8.	273	+		=	507
9.	376	+		=	590
10.	394	+		=	638

Oefening 3
1.	496	+		=	721
2.	337	+		=	447
3.	456	+		=	777
4.	493	+		=	925
5.	366	+		=	487
6.	332	+		=	446
7.	463	+		=	581
8.	285	+		=	472
9.	168	+		=	296
10.	317	+		=	470

Oefening 4
1.	404	+		=	597
2.	374	+		=	511
3.	500	+		=	669
4.	488	+		=	914
5.	347	+		=	514
6.	336	+		=	543
7.	420	+		=	646
8.	270	+		=	469
9.	307	+		=	612
10.	492	+		=	666

Erbijsommen met vlekken tot en met 1.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	211	+	188	=	399
2.	351	+	187	=	538
3.	389	+	383	=	772
4.	298	+	170	=	468
5.	314	+	242	=	556
6.	240	+	199	=	439
7.	288	+	207	=	495
8.	467	+	126	=	593
9.	231	+	145	=	376
10.	429	+	120	=	549

Oefening 2
1.	404	+	378	=	782
2.	181	+	130	=	311
3.	400	+	302	=	702
4.	378	+	349	=	727
5.	495	+	190	=	685
6.	186	+	146	=	332
7.	279	+	178	=	457
8.	273	+	234	=	507
9.	376	+	214	=	590
10.	394	+	244	=	638

Oefening 3
1.	496	+	225	=	721
2.	337	+	110	=	447
3.	456	+	321	=	777
4.	493	+	432	=	925
5.	366	+	121	=	487
6.	332	+	114	=	446
7.	463	+	118	=	581
8.	285	+	187	=	472
9.	168	+	128	=	296
10.	317	+	153	=	470

Oefening 4
1.	404	+	193	=	597
2.	374	+	137	=	511
3.	500	+	169	=	669
4.	488	+	426	=	914
5.	347	+	167	=	514
6.	336	+	207	=	543
7.	420	+	226	=	646
8.	270	+	199	=	469
9.	307	+	305	=	612
10.	492	+	174	=	666