Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	416	+		=	820
2.	949	+		=	1.822
3.	709	+		=	1.271
4.	525	+		=	869
5.	634	+		=	940
6.	864	+		=	1.096
7.	526	+		=	727
8.	883	+		=	1.523
9.	622	+		=	1.218
10.	871	+		=	1.235

Oefening 2
1.	645	+		=	1.122
2.	888	+		=	1.773
3.	755	+		=	1.089
4.	980	+		=	1.546
5.	546	+		=	829
6.	699	+		=	1.043
7.	450	+		=	876
8.	390	+		=	678
9.	685	+		=	942
10.	888	+		=	1.413

Oefening 3
1.	243	+		=	476
2.	748	+		=	965
3.	687	+		=	1.190
4.	896	+		=	1.560
5.	957	+		=	1.270
6.	874	+		=	1.736
7.	813	+		=	1.387
8.	538	+		=	1.002
9.	543	+		=	862
10.	586	+		=	1.124

Oefening 4
1.	759	+		=	1.482
2.	854	+		=	1.255
3.	404	+		=	637
4.	741	+		=	1.341
5.	806	+		=	1.493
6.	611	+		=	876
7.	704	+		=	1.041
8.	544	+		=	885
9.	278	+		=	478
10.	897	+		=	1.373

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	416	+	404	=	820
2.	949	+	873	=	1.822
3.	709	+	562	=	1.271
4.	525	+	344	=	869
5.	634	+	306	=	940
6.	864	+	232	=	1.096
7.	526	+	201	=	727
8.	883	+	640	=	1.523
9.	622	+	596	=	1.218
10.	871	+	364	=	1.235

Oefening 2
1.	645	+	477	=	1.122
2.	888	+	885	=	1.773
3.	755	+	334	=	1.089
4.	980	+	566	=	1.546
5.	546	+	283	=	829
6.	699	+	344	=	1.043
7.	450	+	426	=	876
8.	390	+	288	=	678
9.	685	+	257	=	942
10.	888	+	525	=	1.413

Oefening 3
1.	243	+	233	=	476
2.	748	+	217	=	965
3.	687	+	503	=	1.190
4.	896	+	664	=	1.560
5.	957	+	313	=	1.270
6.	874	+	862	=	1.736
7.	813	+	574	=	1.387
8.	538	+	464	=	1.002
9.	543	+	319	=	862
10.	586	+	538	=	1.124

Oefening 4
1.	759	+	723	=	1.482
2.	854	+	401	=	1.255
3.	404	+	233	=	637
4.	741	+	600	=	1.341
5.	806	+	687	=	1.493
6.	611	+	265	=	876
7.	704	+	337	=	1.041
8.	544	+	341	=	885
9.	278	+	200	=	478
10.	897	+	476	=	1.373