Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	978	+		=	1.743
2.	954	+		=	1.279
3.	884	+		=	1.176
4.	470	+		=	757
5.	828	+		=	1.371
6.	882	+		=	1.490
7.	742	+		=	1.380
8.	759	+		=	1.299
9.	528	+		=	968
10.	891	+		=	1.346

Oefening 2
1.	235	+		=	445
2.	964	+		=	1.897
3.	845	+		=	1.116
4.	807	+		=	1.031
5.	457	+		=	715
6.	824	+		=	1.194
7.	900	+		=	1.555
8.	769	+		=	1.441
9.	995	+		=	1.618
10.	784	+		=	1.166

Oefening 3
1.	301	+		=	573
2.	247	+		=	475
3.	829	+		=	1.176
4.	863	+		=	1.280
5.	962	+		=	1.548
6.	953	+		=	1.570
7.	677	+		=	1.101
8.	385	+		=	658
9.	768	+		=	1.262
10.	921	+		=	1.645

Oefening 4
1.	888	+		=	1.474
2.	989	+		=	1.848
3.	918	+		=	1.347
4.	990	+		=	1.202
5.	890	+		=	1.313
6.	845	+		=	1.230
7.	920	+		=	1.773
8.	441	+		=	816
9.	597	+		=	1.014
10.	651	+		=	1.150

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	978	+	765	=	1.743
2.	954	+	325	=	1.279
3.	884	+	292	=	1.176
4.	470	+	287	=	757
5.	828	+	543	=	1.371
6.	882	+	608	=	1.490
7.	742	+	638	=	1.380
8.	759	+	540	=	1.299
9.	528	+	440	=	968
10.	891	+	455	=	1.346

Oefening 2
1.	235	+	210	=	445
2.	964	+	933	=	1.897
3.	845	+	271	=	1.116
4.	807	+	224	=	1.031
5.	457	+	258	=	715
6.	824	+	370	=	1.194
7.	900	+	655	=	1.555
8.	769	+	672	=	1.441
9.	995	+	623	=	1.618
10.	784	+	382	=	1.166

Oefening 3
1.	301	+	272	=	573
2.	247	+	228	=	475
3.	829	+	347	=	1.176
4.	863	+	417	=	1.280
5.	962	+	586	=	1.548
6.	953	+	617	=	1.570
7.	677	+	424	=	1.101
8.	385	+	273	=	658
9.	768	+	494	=	1.262
10.	921	+	724	=	1.645

Oefening 4
1.	888	+	586	=	1.474
2.	989	+	859	=	1.848
3.	918	+	429	=	1.347
4.	990	+	212	=	1.202
5.	890	+	423	=	1.313
6.	845	+	385	=	1.230
7.	920	+	853	=	1.773
8.	441	+	375	=	816
9.	597	+	417	=	1.014
10.	651	+	499	=	1.150