Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	359	+		=	710
2.	795	+		=	1.331
3.	967	+		=	1.305
4.	824	+		=	1.568
5.	778	+		=	1.090
6.	900	+		=	1.618
7.	432	+		=	807
8.	867	+		=	1.408
9.	432	+		=	849
10.	826	+		=	1.471

Oefening 2
1.	646	+		=	946
2.	716	+		=	1.066
3.	816	+		=	1.226
4.	553	+		=	892
5.	693	+		=	1.351
6.	418	+		=	727
7.	921	+		=	1.306
8.	899	+		=	1.173
9.	934	+		=	1.824
10.	720	+		=	1.390

Oefening 3
1.	587	+		=	1.106
2.	946	+		=	1.709
3.	781	+		=	1.172
4.	935	+		=	1.328
5.	519	+		=	909
6.	957	+		=	1.648
7.	563	+		=	902
8.	535	+		=	950
9.	795	+		=	1.007
10.	938	+		=	1.148

Oefening 4
1.	338	+		=	586
2.	767	+		=	1.063
3.	891	+		=	1.104
4.	823	+		=	1.394
5.	554	+		=	1.060
6.	453	+		=	709
7.	802	+		=	1.037
8.	931	+		=	1.140
9.	949	+		=	1.734
10.	770	+		=	1.464

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	359	+	351	=	710
2.	795	+	536	=	1.331
3.	967	+	338	=	1.305
4.	824	+	744	=	1.568
5.	778	+	312	=	1.090
6.	900	+	718	=	1.618
7.	432	+	375	=	807
8.	867	+	541	=	1.408
9.	432	+	417	=	849
10.	826	+	645	=	1.471

Oefening 2
1.	646	+	300	=	946
2.	716	+	350	=	1.066
3.	816	+	410	=	1.226
4.	553	+	339	=	892
5.	693	+	658	=	1.351
6.	418	+	309	=	727
7.	921	+	385	=	1.306
8.	899	+	274	=	1.173
9.	934	+	890	=	1.824
10.	720	+	670	=	1.390

Oefening 3
1.	587	+	519	=	1.106
2.	946	+	763	=	1.709
3.	781	+	391	=	1.172
4.	935	+	393	=	1.328
5.	519	+	390	=	909
6.	957	+	691	=	1.648
7.	563	+	339	=	902
8.	535	+	415	=	950
9.	795	+	212	=	1.007
10.	938	+	210	=	1.148

Oefening 4
1.	338	+	248	=	586
2.	767	+	296	=	1.063
3.	891	+	213	=	1.104
4.	823	+	571	=	1.394
5.	554	+	506	=	1.060
6.	453	+	256	=	709
7.	802	+	235	=	1.037
8.	931	+	209	=	1.140
9.	949	+	785	=	1.734
10.	770	+	694	=	1.464