Erbijsommen met vlekken tot en met 1.000

Erbijsommen

Oefening 1
1.	309	+		=	491
2.	494	+		=	820
3.	466	+		=	705
4.	327	+		=	648
5.	346	+		=	689
6.	462	+		=	912
7.	434	+		=	800
8.	384	+		=	523
9.	454	+		=	754
10.	373	+		=	695

Oefening 2
1.	301	+		=	412
2.	494	+		=	645
3.	498	+		=	819
4.	218	+		=	427
5.	452	+		=	580
6.	328	+		=	533
7.	487	+		=	930
8.	456	+		=	699
9.	317	+		=	507
10.	474	+		=	912

Oefening 3
1.	451	+		=	652
2.	393	+		=	567
3.	361	+		=	656
4.	398	+		=	654
5.	444	+		=	727
6.	375	+		=	531
7.	399	+		=	664
8.	273	+		=	432
9.	291	+		=	556
10.	371	+		=	711

Oefening 4
1.	304	+		=	600
2.	290	+		=	564
3.	209	+		=	316
4.	389	+		=	740
5.	173	+		=	344
6.	354	+		=	703
7.	294	+		=	567
8.	201	+		=	380
9.	295	+		=	429
10.	428	+		=	555

Erbijsommen met vlekken tot en met 1.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	309	+	182	=	491
2.	494	+	326	=	820
3.	466	+	239	=	705
4.	327	+	321	=	648
5.	346	+	343	=	689
6.	462	+	450	=	912
7.	434	+	366	=	800
8.	384	+	139	=	523
9.	454	+	300	=	754
10.	373	+	322	=	695

Oefening 2
1.	301	+	111	=	412
2.	494	+	151	=	645
3.	498	+	321	=	819
4.	218	+	209	=	427
5.	452	+	128	=	580
6.	328	+	205	=	533
7.	487	+	443	=	930
8.	456	+	243	=	699
9.	317	+	190	=	507
10.	474	+	438	=	912

Oefening 3
1.	451	+	201	=	652
2.	393	+	174	=	567
3.	361	+	295	=	656
4.	398	+	256	=	654
5.	444	+	283	=	727
6.	375	+	156	=	531
7.	399	+	265	=	664
8.	273	+	159	=	432
9.	291	+	265	=	556
10.	371	+	340	=	711

Oefening 4
1.	304	+	296	=	600
2.	290	+	274	=	564
3.	209	+	107	=	316
4.	389	+	351	=	740
5.	173	+	171	=	344
6.	354	+	349	=	703
7.	294	+	273	=	567
8.	201	+	179	=	380
9.	295	+	134	=	429
10.	428	+	127	=	555