Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	419	+		=	720
2.	836	+		=	1.555
3.	827	+		=	1.328
4.	971	+		=	1.237
5.	953	+		=	1.700
6.	932	+		=	1.490
7.	963	+		=	1.261
8.	855	+		=	1.195
9.	497	+		=	940
10.	931	+		=	1.194

Oefening 2
1.	580	+		=	961
2.	460	+		=	737
3.	668	+		=	1.326
4.	275	+		=	480
5.	672	+		=	1.323
6.	764	+		=	1.397
7.	873	+		=	1.180
8.	853	+		=	1.456
9.	446	+		=	735
10.	831	+		=	1.195

Oefening 3
1.	423	+		=	646
2.	846	+		=	1.567
3.	768	+		=	1.491
4.	921	+		=	1.462
5.	525	+		=	921
6.	953	+		=	1.646
7.	581	+		=	949
8.	984	+		=	1.511
9.	295	+		=	586
10.	893	+		=	1.373

Oefening 4
1.	998	+		=	1.386
2.	883	+		=	1.199
3.	652	+		=	1.192
4.	835	+		=	1.453
5.	515	+		=	818
6.	726	+		=	1.307
7.	867	+		=	1.590
8.	987	+		=	1.332
9.	428	+		=	711
10.	541	+		=	975

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	419	+	301	=	720
2.	836	+	719	=	1.555
3.	827	+	501	=	1.328
4.	971	+	266	=	1.237
5.	953	+	747	=	1.700
6.	932	+	558	=	1.490
7.	963	+	298	=	1.261
8.	855	+	340	=	1.195
9.	497	+	443	=	940
10.	931	+	263	=	1.194

Oefening 2
1.	580	+	381	=	961
2.	460	+	277	=	737
3.	668	+	658	=	1.326
4.	275	+	205	=	480
5.	672	+	651	=	1.323
6.	764	+	633	=	1.397
7.	873	+	307	=	1.180
8.	853	+	603	=	1.456
9.	446	+	289	=	735
10.	831	+	364	=	1.195

Oefening 3
1.	423	+	223	=	646
2.	846	+	721	=	1.567
3.	768	+	723	=	1.491
4.	921	+	541	=	1.462
5.	525	+	396	=	921
6.	953	+	693	=	1.646
7.	581	+	368	=	949
8.	984	+	527	=	1.511
9.	295	+	291	=	586
10.	893	+	480	=	1.373

Oefening 4
1.	998	+	388	=	1.386
2.	883	+	316	=	1.199
3.	652	+	540	=	1.192
4.	835	+	618	=	1.453
5.	515	+	303	=	818
6.	726	+	581	=	1.307
7.	867	+	723	=	1.590
8.	987	+	345	=	1.332
9.	428	+	283	=	711
10.	541	+	434	=	975