Erbijsommen met vlekken tot en met 1.000

Erbijsommen

Oefening 1
1.	444	+		=	768
2.	321	+		=	512
3.	472	+		=	689
4.	433	+		=	767
5.	193	+		=	330
6.	172	+		=	274
7.	219	+		=	387
8.	500	+		=	915
9.	352	+		=	477
10.	239	+		=	423

Oefening 2
1.	483	+		=	918
2.	456	+		=	757
3.	290	+		=	399
4.	302	+		=	470
5.	338	+		=	525
6.	197	+		=	348
7.	445	+		=	780
8.	341	+		=	668
9.	339	+		=	654
10.	466	+		=	589

Oefening 3
1.	214	+		=	420
2.	483	+		=	896
3.	446	+		=	567
4.	245	+		=	470
5.	497	+		=	987
6.	241	+		=	403
7.	436	+		=	826
8.	450	+		=	579
9.	493	+		=	758
10.	274	+		=	437

Oefening 4
1.	389	+		=	631
2.	392	+		=	633
3.	450	+		=	850
4.	298	+		=	496
5.	463	+		=	648
6.	443	+		=	621
7.	435	+		=	742
8.	378	+		=	701
9.	420	+		=	784
10.	466	+		=	738

Erbijsommen met vlekken tot en met 1.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	444	+	324	=	768
2.	321	+	191	=	512
3.	472	+	217	=	689
4.	433	+	334	=	767
5.	193	+	137	=	330
6.	172	+	102	=	274
7.	219	+	168	=	387
8.	500	+	415	=	915
9.	352	+	125	=	477
10.	239	+	184	=	423

Oefening 2
1.	483	+	435	=	918
2.	456	+	301	=	757
3.	290	+	109	=	399
4.	302	+	168	=	470
5.	338	+	187	=	525
6.	197	+	151	=	348
7.	445	+	335	=	780
8.	341	+	327	=	668
9.	339	+	315	=	654
10.	466	+	123	=	589

Oefening 3
1.	214	+	206	=	420
2.	483	+	413	=	896
3.	446	+	121	=	567
4.	245	+	225	=	470
5.	497	+	490	=	987
6.	241	+	162	=	403
7.	436	+	390	=	826
8.	450	+	129	=	579
9.	493	+	265	=	758
10.	274	+	163	=	437

Oefening 4
1.	389	+	242	=	631
2.	392	+	241	=	633
3.	450	+	400	=	850
4.	298	+	198	=	496
5.	463	+	185	=	648
6.	443	+	178	=	621
7.	435	+	307	=	742
8.	378	+	323	=	701
9.	420	+	364	=	784
10.	466	+	272	=	738