Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	964	+		=	1.881
2.	813	+		=	1.601
3.	530	+		=	1.010
4.	559	+		=	789
5.	717	+		=	1.317
6.	808	+		=	1.439
7.	869	+		=	1.569
8.	310	+		=	546
9.	281	+		=	555
10.	746	+		=	988

Oefening 2
1.	560	+		=	1.117
2.	529	+		=	782
3.	825	+		=	1.478
4.	587	+		=	1.118
5.	822	+		=	1.062
6.	807	+		=	1.155
7.	331	+		=	585
8.	475	+		=	893
9.	913	+		=	1.447
10.	485	+		=	921

Oefening 3
1.	820	+		=	1.324
2.	530	+		=	810
3.	621	+		=	1.063
4.	294	+		=	526
5.	659	+		=	1.092
6.	872	+		=	1.328
7.	923	+		=	1.559
8.	761	+		=	1.117
9.	570	+		=	791
10.	363	+		=	719

Oefening 4
1.	801	+		=	1.354
2.	407	+		=	677
3.	795	+		=	1.309
4.	922	+		=	1.651
5.	654	+		=	1.062
6.	680	+		=	1.327
7.	789	+		=	1.505
8.	394	+		=	738
9.	541	+		=	909
10.	475	+		=	928

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	964	+	917	=	1.881
2.	813	+	788	=	1.601
3.	530	+	480	=	1.010
4.	559	+	230	=	789
5.	717	+	600	=	1.317
6.	808	+	631	=	1.439
7.	869	+	700	=	1.569
8.	310	+	236	=	546
9.	281	+	274	=	555
10.	746	+	242	=	988

Oefening 2
1.	560	+	557	=	1.117
2.	529	+	253	=	782
3.	825	+	653	=	1.478
4.	587	+	531	=	1.118
5.	822	+	240	=	1.062
6.	807	+	348	=	1.155
7.	331	+	254	=	585
8.	475	+	418	=	893
9.	913	+	534	=	1.447
10.	485	+	436	=	921

Oefening 3
1.	820	+	504	=	1.324
2.	530	+	280	=	810
3.	621	+	442	=	1.063
4.	294	+	232	=	526
5.	659	+	433	=	1.092
6.	872	+	456	=	1.328
7.	923	+	636	=	1.559
8.	761	+	356	=	1.117
9.	570	+	221	=	791
10.	363	+	356	=	719

Oefening 4
1.	801	+	553	=	1.354
2.	407	+	270	=	677
3.	795	+	514	=	1.309
4.	922	+	729	=	1.651
5.	654	+	408	=	1.062
6.	680	+	647	=	1.327
7.	789	+	716	=	1.505
8.	394	+	344	=	738
9.	541	+	368	=	909
10.	475	+	453	=	928