Erbijsommen met vlekken tot en met 1.000

Erbijsommen

Oefening 1
1.	278	+		=	405
2.	433	+		=	745
3.	389	+		=	490
4.	434	+		=	550
5.	451	+		=	555
6.	279	+		=	534
7.	182	+		=	335
8.	317	+		=	558
9.	241	+		=	477
10.	255	+		=	393

Oefening 2
1.	432	+		=	759
2.	477	+		=	932
3.	477	+		=	616
4.	446	+		=	720
5.	142	+		=	250
6.	380	+		=	619
7.	477	+		=	811
8.	423	+		=	611
9.	498	+		=	904
10.	316	+		=	540

Oefening 3
1.	492	+		=	749
2.	244	+		=	404
3.	170	+		=	311
4.	448	+		=	823
5.	292	+		=	564
6.	438	+		=	785
7.	403	+		=	574
8.	441	+		=	779
9.	365	+		=	729
10.	341	+		=	465

Oefening 4
1.	454	+		=	709
2.	374	+		=	577
3.	331	+		=	490
4.	458	+		=	829
5.	330	+		=	581
6.	204	+		=	359
7.	469	+		=	890
8.	406	+		=	766
9.	305	+		=	538
10.	499	+		=	650

Erbijsommen met vlekken tot en met 1.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	278	+	127	=	405
2.	433	+	312	=	745
3.	389	+	101	=	490
4.	434	+	116	=	550
5.	451	+	104	=	555
6.	279	+	255	=	534
7.	182	+	153	=	335
8.	317	+	241	=	558
9.	241	+	236	=	477
10.	255	+	138	=	393

Oefening 2
1.	432	+	327	=	759
2.	477	+	455	=	932
3.	477	+	139	=	616
4.	446	+	274	=	720
5.	142	+	108	=	250
6.	380	+	239	=	619
7.	477	+	334	=	811
8.	423	+	188	=	611
9.	498	+	406	=	904
10.	316	+	224	=	540

Oefening 3
1.	492	+	257	=	749
2.	244	+	160	=	404
3.	170	+	141	=	311
4.	448	+	375	=	823
5.	292	+	272	=	564
6.	438	+	347	=	785
7.	403	+	171	=	574
8.	441	+	338	=	779
9.	365	+	364	=	729
10.	341	+	124	=	465

Oefening 4
1.	454	+	255	=	709
2.	374	+	203	=	577
3.	331	+	159	=	490
4.	458	+	371	=	829
5.	330	+	251	=	581
6.	204	+	155	=	359
7.	469	+	421	=	890
8.	406	+	360	=	766
9.	305	+	233	=	538
10.	499	+	151	=	650