Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	264	+		=	477
2.	803	+		=	1.474
3.	867	+		=	1.294
4.	861	+		=	1.312
5.	613	+		=	840
6.	865	+		=	1.701
7.	636	+		=	985
8.	847	+		=	1.471
9.	553	+		=	994
10.	925	+		=	1.551

Oefening 2
1.	958	+		=	1.894
2.	492	+		=	791
3.	905	+		=	1.459
4.	407	+		=	751
5.	965	+		=	1.606
6.	797	+		=	1.133
7.	890	+		=	1.502
8.	875	+		=	1.739
9.	603	+		=	998
10.	719	+		=	1.252

Oefening 3
1.	530	+		=	963
2.	922	+		=	1.366
3.	525	+		=	985
4.	929	+		=	1.841
5.	830	+		=	1.568
6.	770	+		=	1.152
7.	984	+		=	1.826
8.	973	+		=	1.275
9.	666	+		=	888
10.	479	+		=	858

Oefening 4
1.	733	+		=	964
2.	794	+		=	1.279
3.	785	+		=	1.145
4.	966	+		=	1.238
5.	912	+		=	1.363
6.	931	+		=	1.395
7.	782	+		=	1.502
8.	907	+		=	1.470
9.	703	+		=	1.261
10.	896	+		=	1.343

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	264	+	213	=	477
2.	803	+	671	=	1.474
3.	867	+	427	=	1.294
4.	861	+	451	=	1.312
5.	613	+	227	=	840
6.	865	+	836	=	1.701
7.	636	+	349	=	985
8.	847	+	624	=	1.471
9.	553	+	441	=	994
10.	925	+	626	=	1.551

Oefening 2
1.	958	+	936	=	1.894
2.	492	+	299	=	791
3.	905	+	554	=	1.459
4.	407	+	344	=	751
5.	965	+	641	=	1.606
6.	797	+	336	=	1.133
7.	890	+	612	=	1.502
8.	875	+	864	=	1.739
9.	603	+	395	=	998
10.	719	+	533	=	1.252

Oefening 3
1.	530	+	433	=	963
2.	922	+	444	=	1.366
3.	525	+	460	=	985
4.	929	+	912	=	1.841
5.	830	+	738	=	1.568
6.	770	+	382	=	1.152
7.	984	+	842	=	1.826
8.	973	+	302	=	1.275
9.	666	+	222	=	888
10.	479	+	379	=	858

Oefening 4
1.	733	+	231	=	964
2.	794	+	485	=	1.279
3.	785	+	360	=	1.145
4.	966	+	272	=	1.238
5.	912	+	451	=	1.363
6.	931	+	464	=	1.395
7.	782	+	720	=	1.502
8.	907	+	563	=	1.470
9.	703	+	558	=	1.261
10.	896	+	447	=	1.343