Erbijsommen met vlekken tot en met 1.000

Erbijsommen

Oefening 1
1.	471	+		=	851
2.	463	+		=	908
3.	222	+		=	362
4.	181	+		=	346
5.	383	+		=	565
6.	383	+		=	686
7.	440	+		=	605
8.	286	+		=	432
9.	375	+		=	503
10.	257	+		=	464

Oefening 2
1.	277	+		=	413
2.	345	+		=	686
3.	438	+		=	591
4.	243	+		=	462
5.	497	+		=	948
6.	254	+		=	458
7.	149	+		=	294
8.	485	+		=	754
9.	439	+		=	772
10.	401	+		=	561

Oefening 3
1.	275	+		=	519
2.	257	+		=	460
3.	394	+		=	764
4.	272	+		=	460
5.	342	+		=	629
6.	430	+		=	557
7.	497	+		=	943
8.	426	+		=	692
9.	414	+		=	754
10.	360	+		=	555

Oefening 4
1.	470	+		=	909
2.	475	+		=	629
3.	330	+		=	449
4.	359	+		=	608
5.	444	+		=	773
6.	474	+		=	907
7.	433	+		=	689
8.	280	+		=	416
9.	383	+		=	544
10.	307	+		=	573

Erbijsommen met vlekken tot en met 1.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	471	+	380	=	851
2.	463	+	445	=	908
3.	222	+	140	=	362
4.	181	+	165	=	346
5.	383	+	182	=	565
6.	383	+	303	=	686
7.	440	+	165	=	605
8.	286	+	146	=	432
9.	375	+	128	=	503
10.	257	+	207	=	464

Oefening 2
1.	277	+	136	=	413
2.	345	+	341	=	686
3.	438	+	153	=	591
4.	243	+	219	=	462
5.	497	+	451	=	948
6.	254	+	204	=	458
7.	149	+	145	=	294
8.	485	+	269	=	754
9.	439	+	333	=	772
10.	401	+	160	=	561

Oefening 3
1.	275	+	244	=	519
2.	257	+	203	=	460
3.	394	+	370	=	764
4.	272	+	188	=	460
5.	342	+	287	=	629
6.	430	+	127	=	557
7.	497	+	446	=	943
8.	426	+	266	=	692
9.	414	+	340	=	754
10.	360	+	195	=	555

Oefening 4
1.	470	+	439	=	909
2.	475	+	154	=	629
3.	330	+	119	=	449
4.	359	+	249	=	608
5.	444	+	329	=	773
6.	474	+	433	=	907
7.	433	+	256	=	689
8.	280	+	136	=	416
9.	383	+	161	=	544
10.	307	+	266	=	573