Erbijsommen met vlekken tot en met 1.000

Erbijsommen

Oefening 1
1.	421	+		=	629
2.	427	+		=	767
3.	450	+		=	589
4.	280	+		=	426
5.	460	+		=	820
6.	325	+		=	447
7.	497	+		=	680
8.	172	+		=	272
9.	280	+		=	482
10.	304	+		=	423

Oefening 2
1.	428	+		=	624
2.	415	+		=	616
3.	353	+		=	696
4.	249	+		=	494
5.	190	+		=	361
6.	480	+		=	626
7.	256	+		=	429
8.	467	+		=	845
9.	219	+		=	373
10.	332	+		=	654

Oefening 3
1.	385	+		=	623
2.	472	+		=	656
3.	407	+		=	740
4.	267	+		=	485
5.	428	+		=	627
6.	369	+		=	550
7.	442	+		=	673
8.	305	+		=	436
9.	458	+		=	769
10.	247	+		=	489

Oefening 4
1.	360	+		=	705
2.	360	+		=	712
3.	390	+		=	617
4.	308	+		=	599
5.	419	+		=	814
6.	338	+		=	610
7.	476	+		=	940
8.	277	+		=	501
9.	327	+		=	536
10.	388	+		=	649

Erbijsommen met vlekken tot en met 1.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	421	+	208	=	629
2.	427	+	340	=	767
3.	450	+	139	=	589
4.	280	+	146	=	426
5.	460	+	360	=	820
6.	325	+	122	=	447
7.	497	+	183	=	680
8.	172	+	100	=	272
9.	280	+	202	=	482
10.	304	+	119	=	423

Oefening 2
1.	428	+	196	=	624
2.	415	+	201	=	616
3.	353	+	343	=	696
4.	249	+	245	=	494
5.	190	+	171	=	361
6.	480	+	146	=	626
7.	256	+	173	=	429
8.	467	+	378	=	845
9.	219	+	154	=	373
10.	332	+	322	=	654

Oefening 3
1.	385	+	238	=	623
2.	472	+	184	=	656
3.	407	+	333	=	740
4.	267	+	218	=	485
5.	428	+	199	=	627
6.	369	+	181	=	550
7.	442	+	231	=	673
8.	305	+	131	=	436
9.	458	+	311	=	769
10.	247	+	242	=	489

Oefening 4
1.	360	+	345	=	705
2.	360	+	352	=	712
3.	390	+	227	=	617
4.	308	+	291	=	599
5.	419	+	395	=	814
6.	338	+	272	=	610
7.	476	+	464	=	940
8.	277	+	224	=	501
9.	327	+	209	=	536
10.	388	+	261	=	649