Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	745	+		=	1.231
2.	989	+		=	1.381
3.	376	+		=	656
4.	295	+		=	558
5.	929	+		=	1.842
6.	310	+		=	568
7.	692	+		=	1.164
8.	852	+		=	1.557
9.	985	+		=	1.899
10.	889	+		=	1.162

Oefening 2
1.	454	+		=	878
2.	630	+		=	1.061
3.	469	+		=	915
4.	735	+		=	1.178
5.	886	+		=	1.566
6.	931	+		=	1.494
7.	806	+		=	1.366
8.	881	+		=	1.638
9.	939	+		=	1.428
10.	787	+		=	1.413

Oefening 3
1.	253	+		=	454
2.	986	+		=	1.944
3.	776	+		=	1.501
4.	998	+		=	1.662
5.	761	+		=	1.425
6.	950	+		=	1.211
7.	838	+		=	1.625
8.	738	+		=	973
9.	665	+		=	1.230
10.	801	+		=	1.305

Oefening 4
1.	782	+		=	1.024
2.	889	+		=	1.174
3.	704	+		=	1.220
4.	865	+		=	1.191
5.	554	+		=	810
6.	400	+		=	727
7.	573	+		=	1.055
8.	724	+		=	1.416
9.	899	+		=	1.361
10.	658	+		=	1.013

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	745	+	486	=	1.231
2.	989	+	392	=	1.381
3.	376	+	280	=	656
4.	295	+	263	=	558
5.	929	+	913	=	1.842
6.	310	+	258	=	568
7.	692	+	472	=	1.164
8.	852	+	705	=	1.557
9.	985	+	914	=	1.899
10.	889	+	273	=	1.162

Oefening 2
1.	454	+	424	=	878
2.	630	+	431	=	1.061
3.	469	+	446	=	915
4.	735	+	443	=	1.178
5.	886	+	680	=	1.566
6.	931	+	563	=	1.494
7.	806	+	560	=	1.366
8.	881	+	757	=	1.638
9.	939	+	489	=	1.428
10.	787	+	626	=	1.413

Oefening 3
1.	253	+	201	=	454
2.	986	+	958	=	1.944
3.	776	+	725	=	1.501
4.	998	+	664	=	1.662
5.	761	+	664	=	1.425
6.	950	+	261	=	1.211
7.	838	+	787	=	1.625
8.	738	+	235	=	973
9.	665	+	565	=	1.230
10.	801	+	504	=	1.305

Oefening 4
1.	782	+	242	=	1.024
2.	889	+	285	=	1.174
3.	704	+	516	=	1.220
4.	865	+	326	=	1.191
5.	554	+	256	=	810
6.	400	+	327	=	727
7.	573	+	482	=	1.055
8.	724	+	692	=	1.416
9.	899	+	462	=	1.361
10.	658	+	355	=	1.013