Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	261	+		=	513
2.	476	+		=	860
3.	998	+		=	1.237
4.	711	+		=	1.254
5.	747	+		=	1.135
6.	772	+		=	1.235
7.	642	+		=	940
8.	891	+		=	1.654
9.	883	+		=	1.324
10.	728	+		=	999

Oefening 2
1.	348	+		=	609
2.	517	+		=	813
3.	848	+		=	1.267
4.	893	+		=	1.332
5.	920	+		=	1.810
6.	784	+		=	1.489
7.	800	+		=	1.371
8.	753	+		=	1.408
9.	873	+		=	1.596
10.	839	+		=	1.525

Oefening 3
1.	787	+		=	1.045
2.	860	+		=	1.261
3.	981	+		=	1.211
4.	858	+		=	1.272
5.	790	+		=	1.575
6.	628	+		=	1.130
7.	571	+		=	1.040
8.	855	+		=	1.390
9.	728	+		=	1.249
10.	656	+		=	910

Oefening 4
1.	917	+		=	1.207
2.	809	+		=	1.028
3.	538	+		=	898
4.	858	+		=	1.232
5.	919	+		=	1.408
6.	686	+		=	1.033
7.	870	+		=	1.717
8.	524	+		=	787
9.	699	+		=	1.115
10.	949	+		=	1.896

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	261	+	252	=	513
2.	476	+	384	=	860
3.	998	+	239	=	1.237
4.	711	+	543	=	1.254
5.	747	+	388	=	1.135
6.	772	+	463	=	1.235
7.	642	+	298	=	940
8.	891	+	763	=	1.654
9.	883	+	441	=	1.324
10.	728	+	271	=	999

Oefening 2
1.	348	+	261	=	609
2.	517	+	296	=	813
3.	848	+	419	=	1.267
4.	893	+	439	=	1.332
5.	920	+	890	=	1.810
6.	784	+	705	=	1.489
7.	800	+	571	=	1.371
8.	753	+	655	=	1.408
9.	873	+	723	=	1.596
10.	839	+	686	=	1.525

Oefening 3
1.	787	+	258	=	1.045
2.	860	+	401	=	1.261
3.	981	+	230	=	1.211
4.	858	+	414	=	1.272
5.	790	+	785	=	1.575
6.	628	+	502	=	1.130
7.	571	+	469	=	1.040
8.	855	+	535	=	1.390
9.	728	+	521	=	1.249
10.	656	+	254	=	910

Oefening 4
1.	917	+	290	=	1.207
2.	809	+	219	=	1.028
3.	538	+	360	=	898
4.	858	+	374	=	1.232
5.	919	+	489	=	1.408
6.	686	+	347	=	1.033
7.	870	+	847	=	1.717
8.	524	+	263	=	787
9.	699	+	416	=	1.115
10.	949	+	947	=	1.896