Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	280	+		=	556
2.	731	+		=	1.435
3.	920	+		=	1.681
4.	840	+		=	1.320
5.	767	+		=	1.088
6.	847	+		=	1.283
7.	660	+		=	1.287
8.	470	+		=	896
9.	761	+		=	1.021
10.	497	+		=	913

Oefening 2
1.	856	+		=	1.226
2.	945	+		=	1.549
3.	411	+		=	627
4.	679	+		=	1.119
5.	986	+		=	1.219
6.	974	+		=	1.340
7.	754	+		=	1.467
8.	729	+		=	1.073
9.	791	+		=	1.049
10.	572	+		=	938

Oefening 3
1.	927	+		=	1.689
2.	566	+		=	1.100
3.	836	+		=	1.556
4.	675	+		=	938
5.	750	+		=	1.329
6.	843	+		=	1.542
7.	693	+		=	1.319
8.	388	+		=	754
9.	650	+		=	1.195
10.	910	+		=	1.578

Oefening 4
1.	965	+		=	1.766
2.	599	+		=	1.134
3.	573	+		=	791
4.	874	+		=	1.412
5.	979	+		=	1.692
6.	563	+		=	926
7.	647	+		=	1.228
8.	933	+		=	1.509
9.	867	+		=	1.660
10.	907	+		=	1.321

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	280	+	276	=	556
2.	731	+	704	=	1.435
3.	920	+	761	=	1.681
4.	840	+	480	=	1.320
5.	767	+	321	=	1.088
6.	847	+	436	=	1.283
7.	660	+	627	=	1.287
8.	470	+	426	=	896
9.	761	+	260	=	1.021
10.	497	+	416	=	913

Oefening 2
1.	856	+	370	=	1.226
2.	945	+	604	=	1.549
3.	411	+	216	=	627
4.	679	+	440	=	1.119
5.	986	+	233	=	1.219
6.	974	+	366	=	1.340
7.	754	+	713	=	1.467
8.	729	+	344	=	1.073
9.	791	+	258	=	1.049
10.	572	+	366	=	938

Oefening 3
1.	927	+	762	=	1.689
2.	566	+	534	=	1.100
3.	836	+	720	=	1.556
4.	675	+	263	=	938
5.	750	+	579	=	1.329
6.	843	+	699	=	1.542
7.	693	+	626	=	1.319
8.	388	+	366	=	754
9.	650	+	545	=	1.195
10.	910	+	668	=	1.578

Oefening 4
1.	965	+	801	=	1.766
2.	599	+	535	=	1.134
3.	573	+	218	=	791
4.	874	+	538	=	1.412
5.	979	+	713	=	1.692
6.	563	+	363	=	926
7.	647	+	581	=	1.228
8.	933	+	576	=	1.509
9.	867	+	793	=	1.660
10.	907	+	414	=	1.321