Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	807	+		=	1.284
2.	766	+		=	1.508
3.	540	+		=	922
4.	835	+		=	1.664
5.	821	+		=	1.516
6.	732	+		=	1.050
7.	727	+		=	1.063
8.	595	+		=	1.076
9.	807	+		=	1.603
10.	980	+		=	1.372

Oefening 2
1.	322	+		=	570
2.	447	+		=	738
3.	848	+		=	1.389
4.	917	+		=	1.541
5.	677	+		=	1.172
6.	564	+		=	886
7.	591	+		=	1.179
8.	732	+		=	1.426
9.	596	+		=	1.123
10.	563	+		=	887

Oefening 3
1.	634	+		=	1.054
2.	898	+		=	1.267
3.	544	+		=	970
4.	728	+		=	933
5.	895	+		=	1.297
6.	395	+		=	624
7.	707	+		=	1.217
8.	971	+		=	1.777
9.	911	+		=	1.585
10.	598	+		=	1.100

Oefening 4
1.	656	+		=	1.070
2.	959	+		=	1.258
3.	950	+		=	1.228
4.	455	+		=	670
5.	530	+		=	957
6.	603	+		=	1.002
7.	659	+		=	873
8.	919	+		=	1.681
9.	725	+		=	1.332
10.	701	+		=	1.383

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	807	+	477	=	1.284
2.	766	+	742	=	1.508
3.	540	+	382	=	922
4.	835	+	829	=	1.664
5.	821	+	695	=	1.516
6.	732	+	318	=	1.050
7.	727	+	336	=	1.063
8.	595	+	481	=	1.076
9.	807	+	796	=	1.603
10.	980	+	392	=	1.372

Oefening 2
1.	322	+	248	=	570
2.	447	+	291	=	738
3.	848	+	541	=	1.389
4.	917	+	624	=	1.541
5.	677	+	495	=	1.172
6.	564	+	322	=	886
7.	591	+	588	=	1.179
8.	732	+	694	=	1.426
9.	596	+	527	=	1.123
10.	563	+	324	=	887

Oefening 3
1.	634	+	420	=	1.054
2.	898	+	369	=	1.267
3.	544	+	426	=	970
4.	728	+	205	=	933
5.	895	+	402	=	1.297
6.	395	+	229	=	624
7.	707	+	510	=	1.217
8.	971	+	806	=	1.777
9.	911	+	674	=	1.585
10.	598	+	502	=	1.100

Oefening 4
1.	656	+	414	=	1.070
2.	959	+	299	=	1.258
3.	950	+	278	=	1.228
4.	455	+	215	=	670
5.	530	+	427	=	957
6.	603	+	399	=	1.002
7.	659	+	214	=	873
8.	919	+	762	=	1.681
9.	725	+	607	=	1.332
10.	701	+	682	=	1.383