Erbijsommen met vlekken tot en met 1.000

Erbijsommen

Oefening 1
1.	405	+		=	801
2.	353	+		=	644
3.	146	+		=	289
4.	444	+		=	627
5.	386	+		=	678
6.	172	+		=	298
7.	455	+		=	742
8.	495	+		=	685
9.	429	+		=	613
10.	269	+		=	439

Oefening 2
1.	406	+		=	656
2.	413	+		=	793
3.	387	+		=	637
4.	297	+		=	592
5.	417	+		=	550
6.	439	+		=	865
7.	340	+		=	514
8.	471	+		=	892
9.	293	+		=	580
10.	454	+		=	739

Oefening 3
1.	487	+		=	936
2.	340	+		=	618
3.	314	+		=	546
4.	480	+		=	699
5.	386	+		=	678
6.	372	+		=	668
7.	499	+		=	605
8.	233	+		=	383
9.	459	+		=	660
10.	477	+		=	852

Oefening 4
1.	492	+		=	885
2.	471	+		=	822
3.	377	+		=	720
4.	323	+		=	501
5.	264	+		=	420
6.	473	+		=	723
7.	479	+		=	782
8.	250	+		=	460
9.	340	+		=	527
10.	464	+		=	918

Erbijsommen met vlekken tot en met 1.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	405	+	396	=	801
2.	353	+	291	=	644
3.	146	+	143	=	289
4.	444	+	183	=	627
5.	386	+	292	=	678
6.	172	+	126	=	298
7.	455	+	287	=	742
8.	495	+	190	=	685
9.	429	+	184	=	613
10.	269	+	170	=	439

Oefening 2
1.	406	+	250	=	656
2.	413	+	380	=	793
3.	387	+	250	=	637
4.	297	+	295	=	592
5.	417	+	133	=	550
6.	439	+	426	=	865
7.	340	+	174	=	514
8.	471	+	421	=	892
9.	293	+	287	=	580
10.	454	+	285	=	739

Oefening 3
1.	487	+	449	=	936
2.	340	+	278	=	618
3.	314	+	232	=	546
4.	480	+	219	=	699
5.	386	+	292	=	678
6.	372	+	296	=	668
7.	499	+	106	=	605
8.	233	+	150	=	383
9.	459	+	201	=	660
10.	477	+	375	=	852

Oefening 4
1.	492	+	393	=	885
2.	471	+	351	=	822
3.	377	+	343	=	720
4.	323	+	178	=	501
5.	264	+	156	=	420
6.	473	+	250	=	723
7.	479	+	303	=	782
8.	250	+	210	=	460
9.	340	+	187	=	527
10.	464	+	454	=	918