Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	999	+		=	1.990
2.	648	+		=	1.111
3.	319	+		=	571
4.	832	+		=	1.631
5.	765	+		=	1.306
6.	821	+		=	1.154
7.	537	+		=	920
8.	681	+		=	1.276
9.	841	+		=	1.674
10.	924	+		=	1.658

Oefening 2
1.	460	+		=	894
2.	703	+		=	1.159
3.	603	+		=	996
4.	895	+		=	1.519
5.	291	+		=	522
6.	861	+		=	1.419
7.	987	+		=	1.365
8.	974	+		=	1.444
9.	684	+		=	1.100
10.	701	+		=	1.051

Oefening 3
1.	431	+		=	752
2.	806	+		=	1.047
3.	989	+		=	1.854
4.	413	+		=	728
5.	538	+		=	1.029
6.	796	+		=	1.333
7.	292	+		=	536
8.	304	+		=	533
9.	747	+		=	1.376
10.	969	+		=	1.501

Oefening 4
1.	997	+		=	1.290
2.	615	+		=	1.215
3.	700	+		=	1.030
4.	965	+		=	1.476
5.	941	+		=	1.187
6.	798	+		=	1.238
7.	494	+		=	808
8.	641	+		=	1.136
9.	606	+		=	964
10.	486	+		=	946

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	999	+	991	=	1.990
2.	648	+	463	=	1.111
3.	319	+	252	=	571
4.	832	+	799	=	1.631
5.	765	+	541	=	1.306
6.	821	+	333	=	1.154
7.	537	+	383	=	920
8.	681	+	595	=	1.276
9.	841	+	833	=	1.674
10.	924	+	734	=	1.658

Oefening 2
1.	460	+	434	=	894
2.	703	+	456	=	1.159
3.	603	+	393	=	996
4.	895	+	624	=	1.519
5.	291	+	231	=	522
6.	861	+	558	=	1.419
7.	987	+	378	=	1.365
8.	974	+	470	=	1.444
9.	684	+	416	=	1.100
10.	701	+	350	=	1.051

Oefening 3
1.	431	+	321	=	752
2.	806	+	241	=	1.047
3.	989	+	865	=	1.854
4.	413	+	315	=	728
5.	538	+	491	=	1.029
6.	796	+	537	=	1.333
7.	292	+	244	=	536
8.	304	+	229	=	533
9.	747	+	629	=	1.376
10.	969	+	532	=	1.501

Oefening 4
1.	997	+	293	=	1.290
2.	615	+	600	=	1.215
3.	700	+	330	=	1.030
4.	965	+	511	=	1.476
5.	941	+	246	=	1.187
6.	798	+	440	=	1.238
7.	494	+	314	=	808
8.	641	+	495	=	1.136
9.	606	+	358	=	964
10.	486	+	460	=	946