Erbijsommen met vlekken tot en met 1.000

Erbijsommen

Oefening 1
1.	450	+		=	631
2.	241	+		=	436
3.	492	+		=	791
4.	354	+		=	650
5.	139	+		=	242
6.	348	+		=	504
7.	275	+		=	428
8.	269	+		=	419
9.	219	+		=	395
10.	379	+		=	684

Oefening 2
1.	245	+		=	399
2.	409	+		=	735
3.	344	+		=	611
4.	427	+		=	809
5.	321	+		=	479
6.	497	+		=	650
7.	144	+		=	253
8.	276	+		=	551
9.	394	+		=	755
10.	288	+		=	428

Oefening 3
1.	194	+		=	332
2.	160	+		=	320
3.	457	+		=	688
4.	476	+		=	749
5.	322	+		=	582
6.	256	+		=	368
7.	430	+		=	713
8.	202	+		=	332
9.	225	+		=	373
10.	428	+		=	545

Oefening 4
1.	194	+		=	345
2.	262	+		=	497
3.	342	+		=	481
4.	467	+		=	602
5.	205	+		=	312
6.	498	+		=	845
7.	291	+		=	561
8.	262	+		=	473
9.	478	+		=	657
10.	366	+		=	559

Erbijsommen met vlekken tot en met 1.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	450	+	181	=	631
2.	241	+	195	=	436
3.	492	+	299	=	791
4.	354	+	296	=	650
5.	139	+	103	=	242
6.	348	+	156	=	504
7.	275	+	153	=	428
8.	269	+	150	=	419
9.	219	+	176	=	395
10.	379	+	305	=	684

Oefening 2
1.	245	+	154	=	399
2.	409	+	326	=	735
3.	344	+	267	=	611
4.	427	+	382	=	809
5.	321	+	158	=	479
6.	497	+	153	=	650
7.	144	+	109	=	253
8.	276	+	275	=	551
9.	394	+	361	=	755
10.	288	+	140	=	428

Oefening 3
1.	194	+	138	=	332
2.	160	+	160	=	320
3.	457	+	231	=	688
4.	476	+	273	=	749
5.	322	+	260	=	582
6.	256	+	112	=	368
7.	430	+	283	=	713
8.	202	+	130	=	332
9.	225	+	148	=	373
10.	428	+	117	=	545

Oefening 4
1.	194	+	151	=	345
2.	262	+	235	=	497
3.	342	+	139	=	481
4.	467	+	135	=	602
5.	205	+	107	=	312
6.	498	+	347	=	845
7.	291	+	270	=	561
8.	262	+	211	=	473
9.	478	+	179	=	657
10.	366	+	193	=	559