Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	571	+		=	994
2.	964	+		=	1.530
3.	992	+		=	1.543
4.	949	+		=	1.791
5.	788	+		=	1.424
6.	902	+		=	1.721
7.	806	+		=	1.299
8.	435	+		=	768
9.	652	+		=	1.067
10.	572	+		=	831

Oefening 2
1.	585	+		=	881
2.	585	+		=	948
3.	998	+		=	1.955
4.	504	+		=	786
5.	979	+		=	1.929
6.	858	+		=	1.114
7.	565	+		=	834
8.	308	+		=	576
9.	655	+		=	935
10.	869	+		=	1.504

Oefening 3
1.	884	+		=	1.767
2.	955	+		=	1.282
3.	856	+		=	1.147
4.	394	+		=	679
5.	758	+		=	989
6.	993	+		=	1.826
7.	935	+		=	1.146
8.	854	+		=	1.337
9.	858	+		=	1.185
10.	558	+		=	772

Oefening 4
1.	992	+		=	1.862
2.	241	+		=	478
3.	535	+		=	967
4.	981	+		=	1.934
5.	564	+		=	1.087
6.	401	+		=	647
7.	970	+		=	1.604
8.	400	+		=	657
9.	607	+		=	1.156
10.	777	+		=	1.052

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	571	+	423	=	994
2.	964	+	566	=	1.530
3.	992	+	551	=	1.543
4.	949	+	842	=	1.791
5.	788	+	636	=	1.424
6.	902	+	819	=	1.721
7.	806	+	493	=	1.299
8.	435	+	333	=	768
9.	652	+	415	=	1.067
10.	572	+	259	=	831

Oefening 2
1.	585	+	296	=	881
2.	585	+	363	=	948
3.	998	+	957	=	1.955
4.	504	+	282	=	786
5.	979	+	950	=	1.929
6.	858	+	256	=	1.114
7.	565	+	269	=	834
8.	308	+	268	=	576
9.	655	+	280	=	935
10.	869	+	635	=	1.504

Oefening 3
1.	884	+	883	=	1.767
2.	955	+	327	=	1.282
3.	856	+	291	=	1.147
4.	394	+	285	=	679
5.	758	+	231	=	989
6.	993	+	833	=	1.826
7.	935	+	211	=	1.146
8.	854	+	483	=	1.337
9.	858	+	327	=	1.185
10.	558	+	214	=	772

Oefening 4
1.	992	+	870	=	1.862
2.	241	+	237	=	478
3.	535	+	432	=	967
4.	981	+	953	=	1.934
5.	564	+	523	=	1.087
6.	401	+	246	=	647
7.	970	+	634	=	1.604
8.	400	+	257	=	657
9.	607	+	549	=	1.156
10.	777	+	275	=	1.052