Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	270	+		=	522
2.	981	+		=	1.730
3.	810	+		=	1.464
4.	370	+		=	667
5.	796	+		=	1.590
6.	682	+		=	1.180
7.	966	+		=	1.600
8.	807	+		=	1.300
9.	382	+		=	604
10.	957	+		=	1.699

Oefening 2
1.	855	+		=	1.493
2.	954	+		=	1.517
3.	860	+		=	1.323
4.	917	+		=	1.173
5.	643	+		=	973
6.	741	+		=	1.135
7.	748	+		=	1.138
8.	940	+		=	1.413
9.	903	+		=	1.482
10.	684	+		=	1.136

Oefening 3
1.	529	+		=	908
2.	923	+		=	1.493
3.	447	+		=	833
4.	588	+		=	789
5.	866	+		=	1.686
6.	747	+		=	1.201
7.	941	+		=	1.472
8.	981	+		=	1.506
9.	737	+		=	1.458
10.	827	+		=	1.480

Oefening 4
1.	838	+		=	1.285
2.	694	+		=	1.200
3.	754	+		=	1.293
4.	775	+		=	1.333
5.	984	+		=	1.209
6.	958	+		=	1.170
7.	822	+		=	1.041
8.	523	+		=	819
9.	950	+		=	1.494
10.	806	+		=	1.207

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	270	+	252	=	522
2.	981	+	749	=	1.730
3.	810	+	654	=	1.464
4.	370	+	297	=	667
5.	796	+	794	=	1.590
6.	682	+	498	=	1.180
7.	966	+	634	=	1.600
8.	807	+	493	=	1.300
9.	382	+	222	=	604
10.	957	+	742	=	1.699

Oefening 2
1.	855	+	638	=	1.493
2.	954	+	563	=	1.517
3.	860	+	463	=	1.323
4.	917	+	256	=	1.173
5.	643	+	330	=	973
6.	741	+	394	=	1.135
7.	748	+	390	=	1.138
8.	940	+	473	=	1.413
9.	903	+	579	=	1.482
10.	684	+	452	=	1.136

Oefening 3
1.	529	+	379	=	908
2.	923	+	570	=	1.493
3.	447	+	386	=	833
4.	588	+	201	=	789
5.	866	+	820	=	1.686
6.	747	+	454	=	1.201
7.	941	+	531	=	1.472
8.	981	+	525	=	1.506
9.	737	+	721	=	1.458
10.	827	+	653	=	1.480

Oefening 4
1.	838	+	447	=	1.285
2.	694	+	506	=	1.200
3.	754	+	539	=	1.293
4.	775	+	558	=	1.333
5.	984	+	225	=	1.209
6.	958	+	212	=	1.170
7.	822	+	219	=	1.041
8.	523	+	296	=	819
9.	950	+	544	=	1.494
10.	806	+	401	=	1.207