Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	988	+		=	1.828
2.	781	+		=	1.086
3.	431	+		=	844
4.	839	+		=	1.584
5.	833	+		=	1.559
6.	608	+		=	1.003
7.	428	+		=	788
8.	508	+		=	748
9.	895	+		=	1.759
10.	723	+		=	1.051

Oefening 2
1.	942	+		=	1.365
2.	453	+		=	737
3.	397	+		=	707
4.	645	+		=	1.213
5.	944	+		=	1.236
6.	698	+		=	1.223
7.	861	+		=	1.629
8.	501	+		=	889
9.	285	+		=	498
10.	704	+		=	1.299

Oefening 3
1.	770	+		=	1.192
2.	502	+		=	814
3.	793	+		=	1.142
4.	840	+		=	1.053
5.	636	+		=	1.119
6.	986	+		=	1.293
7.	957	+		=	1.390
8.	522	+		=	960
9.	975	+		=	1.363
10.	772	+		=	985

Oefening 4
1.	678	+		=	926
2.	956	+		=	1.217
3.	684	+		=	956
4.	620	+		=	1.044
5.	818	+		=	1.425
6.	914	+		=	1.598
7.	524	+		=	857
8.	996	+		=	1.949
9.	927	+		=	1.212
10.	737	+		=	1.391

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	988	+	840	=	1.828
2.	781	+	305	=	1.086
3.	431	+	413	=	844
4.	839	+	745	=	1.584
5.	833	+	726	=	1.559
6.	608	+	395	=	1.003
7.	428	+	360	=	788
8.	508	+	240	=	748
9.	895	+	864	=	1.759
10.	723	+	328	=	1.051

Oefening 2
1.	942	+	423	=	1.365
2.	453	+	284	=	737
3.	397	+	310	=	707
4.	645	+	568	=	1.213
5.	944	+	292	=	1.236
6.	698	+	525	=	1.223
7.	861	+	768	=	1.629
8.	501	+	388	=	889
9.	285	+	213	=	498
10.	704	+	595	=	1.299

Oefening 3
1.	770	+	422	=	1.192
2.	502	+	312	=	814
3.	793	+	349	=	1.142
4.	840	+	213	=	1.053
5.	636	+	483	=	1.119
6.	986	+	307	=	1.293
7.	957	+	433	=	1.390
8.	522	+	438	=	960
9.	975	+	388	=	1.363
10.	772	+	213	=	985

Oefening 4
1.	678	+	248	=	926
2.	956	+	261	=	1.217
3.	684	+	272	=	956
4.	620	+	424	=	1.044
5.	818	+	607	=	1.425
6.	914	+	684	=	1.598
7.	524	+	333	=	857
8.	996	+	953	=	1.949
9.	927	+	285	=	1.212
10.	737	+	654	=	1.391