Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	658	+		=	1.155
2.	401	+		=	645
3.	813	+		=	1.262
4.	841	+		=	1.073
5.	872	+		=	1.519
6.	956	+		=	1.775
7.	570	+		=	819
8.	963	+		=	1.507
9.	569	+		=	780
10.	353	+		=	613

Oefening 2
1.	771	+		=	1.095
2.	612	+		=	929
3.	942	+		=	1.675
4.	911	+		=	1.375
5.	900	+		=	1.190
6.	706	+		=	1.211
7.	767	+		=	1.262
8.	741	+		=	1.166
9.	771	+		=	1.375
10.	694	+		=	984

Oefening 3
1.	642	+		=	1.007
2.	523	+		=	876
3.	963	+		=	1.213
4.	679	+		=	1.010
5.	892	+		=	1.635
6.	766	+		=	1.235
7.	685	+		=	894
8.	513	+		=	760
9.	679	+		=	1.211
10.	963	+		=	1.399

Oefening 4
1.	859	+		=	1.634
2.	260	+		=	479
3.	293	+		=	577
4.	899	+		=	1.560
5.	923	+		=	1.391
6.	466	+		=	688
7.	884	+		=	1.569
8.	645	+		=	1.013
9.	469	+		=	687
10.	639	+		=	1.080

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	658	+	497	=	1.155
2.	401	+	244	=	645
3.	813	+	449	=	1.262
4.	841	+	232	=	1.073
5.	872	+	647	=	1.519
6.	956	+	819	=	1.775
7.	570	+	249	=	819
8.	963	+	544	=	1.507
9.	569	+	211	=	780
10.	353	+	260	=	613

Oefening 2
1.	771	+	324	=	1.095
2.	612	+	317	=	929
3.	942	+	733	=	1.675
4.	911	+	464	=	1.375
5.	900	+	290	=	1.190
6.	706	+	505	=	1.211
7.	767	+	495	=	1.262
8.	741	+	425	=	1.166
9.	771	+	604	=	1.375
10.	694	+	290	=	984

Oefening 3
1.	642	+	365	=	1.007
2.	523	+	353	=	876
3.	963	+	250	=	1.213
4.	679	+	331	=	1.010
5.	892	+	743	=	1.635
6.	766	+	469	=	1.235
7.	685	+	209	=	894
8.	513	+	247	=	760
9.	679	+	532	=	1.211
10.	963	+	436	=	1.399

Oefening 4
1.	859	+	775	=	1.634
2.	260	+	219	=	479
3.	293	+	284	=	577
4.	899	+	661	=	1.560
5.	923	+	468	=	1.391
6.	466	+	222	=	688
7.	884	+	685	=	1.569
8.	645	+	368	=	1.013
9.	469	+	218	=	687
10.	639	+	441	=	1.080