Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	392	+		=	780
2.	714	+		=	1.381
3.	858	+		=	1.478
4.	838	+		=	1.329
5.	758	+		=	1.301
6.	885	+		=	1.512
7.	989	+		=	1.275
8.	955	+		=	1.228
9.	691	+		=	925
10.	553	+		=	930

Oefening 2
1.	800	+		=	1.475
2.	487	+		=	882
3.	993	+		=	1.352
4.	492	+		=	745
5.	487	+		=	751
6.	885	+		=	1.403
7.	905	+		=	1.504
8.	839	+		=	1.072
9.	941	+		=	1.658
10.	535	+		=	921

Oefening 3
1.	794	+		=	1.430
2.	957	+		=	1.756
3.	477	+		=	804
4.	752	+		=	1.117
5.	764	+		=	975
6.	887	+		=	1.593
7.	338	+		=	563
8.	582	+		=	880
9.	751	+		=	1.298
10.	422	+		=	673

Oefening 4
1.	957	+		=	1.203
2.	443	+		=	878
3.	547	+		=	875
4.	556	+		=	1.009
5.	491	+		=	864
6.	504	+		=	933
7.	815	+		=	1.185
8.	618	+		=	895
9.	787	+		=	1.054
10.	647	+		=	1.078

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	392	+	388	=	780
2.	714	+	667	=	1.381
3.	858	+	620	=	1.478
4.	838	+	491	=	1.329
5.	758	+	543	=	1.301
6.	885	+	627	=	1.512
7.	989	+	286	=	1.275
8.	955	+	273	=	1.228
9.	691	+	234	=	925
10.	553	+	377	=	930

Oefening 2
1.	800	+	675	=	1.475
2.	487	+	395	=	882
3.	993	+	359	=	1.352
4.	492	+	253	=	745
5.	487	+	264	=	751
6.	885	+	518	=	1.403
7.	905	+	599	=	1.504
8.	839	+	233	=	1.072
9.	941	+	717	=	1.658
10.	535	+	386	=	921

Oefening 3
1.	794	+	636	=	1.430
2.	957	+	799	=	1.756
3.	477	+	327	=	804
4.	752	+	365	=	1.117
5.	764	+	211	=	975
6.	887	+	706	=	1.593
7.	338	+	225	=	563
8.	582	+	298	=	880
9.	751	+	547	=	1.298
10.	422	+	251	=	673

Oefening 4
1.	957	+	246	=	1.203
2.	443	+	435	=	878
3.	547	+	328	=	875
4.	556	+	453	=	1.009
5.	491	+	373	=	864
6.	504	+	429	=	933
7.	815	+	370	=	1.185
8.	618	+	277	=	895
9.	787	+	267	=	1.054
10.	647	+	431	=	1.078