Erbijsommen met vlekken tot en met 2.000

Erbijsommen

Oefening 1
1.	407	+		=	643
2.	992	+		=	1.476
3.	881	+		=	1.501
4.	613	+		=	1.167
5.	956	+		=	1.785
6.	459	+		=	856
7.	821	+		=	1.060
8.	613	+		=	931
9.	246	+		=	487
10.	748	+		=	1.375

Oefening 2
1.	984	+		=	1.588
2.	664	+		=	1.300
3.	955	+		=	1.234
4.	831	+		=	1.397
5.	776	+		=	1.394
6.	746	+		=	949
7.	998	+		=	1.684
8.	741	+		=	945
9.	819	+		=	1.361
10.	280	+		=	539

Oefening 3
1.	480	+		=	888
2.	601	+		=	906
3.	997	+		=	1.808
4.	752	+		=	1.227
5.	987	+		=	1.311
6.	480	+		=	883
7.	958	+		=	1.508
8.	664	+		=	916
9.	922	+		=	1.203
10.	665	+		=	984

Oefening 4
1.	985	+		=	1.516
2.	884	+		=	1.757
3.	418	+		=	782
4.	929	+		=	1.363
5.	581	+		=	1.145
6.	460	+		=	707
7.	991	+		=	1.527
8.	389	+		=	700
9.	921	+		=	1.237
10.	749	+		=	1.130

Erbijsommen met vlekken tot en met 2.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	407	+	236	=	643
2.	992	+	484	=	1.476
3.	881	+	620	=	1.501
4.	613	+	554	=	1.167
5.	956	+	829	=	1.785
6.	459	+	397	=	856
7.	821	+	239	=	1.060
8.	613	+	318	=	931
9.	246	+	241	=	487
10.	748	+	627	=	1.375

Oefening 2
1.	984	+	604	=	1.588
2.	664	+	636	=	1.300
3.	955	+	279	=	1.234
4.	831	+	566	=	1.397
5.	776	+	618	=	1.394
6.	746	+	203	=	949
7.	998	+	686	=	1.684
8.	741	+	204	=	945
9.	819	+	542	=	1.361
10.	280	+	259	=	539

Oefening 3
1.	480	+	408	=	888
2.	601	+	305	=	906
3.	997	+	811	=	1.808
4.	752	+	475	=	1.227
5.	987	+	324	=	1.311
6.	480	+	403	=	883
7.	958	+	550	=	1.508
8.	664	+	252	=	916
9.	922	+	281	=	1.203
10.	665	+	319	=	984

Oefening 4
1.	985	+	531	=	1.516
2.	884	+	873	=	1.757
3.	418	+	364	=	782
4.	929	+	434	=	1.363
5.	581	+	564	=	1.145
6.	460	+	247	=	707
7.	991	+	536	=	1.527
8.	389	+	311	=	700
9.	921	+	316	=	1.237
10.	749	+	381	=	1.130