Erbijsommen met vlekken tot en met 1.000

Erbijsommen

Oefening 1
1.	421	+		=	579
2.	263	+		=	507
3.	417	+		=	590
4.	498	+		=	878
5.	445	+		=	693
6.	495	+		=	700
7.	205	+		=	369
8.	411	+		=	571
9.	275	+		=	472
10.	346	+		=	534

Oefening 2
1.	289	+		=	429
2.	399	+		=	632
3.	358	+		=	550
4.	444	+		=	589
5.	298	+		=	565
6.	460	+		=	720
7.	485	+		=	830
8.	421	+		=	597
9.	300	+		=	451
10.	387	+		=	756

Oefening 3
1.	395	+		=	645
2.	403	+		=	725
3.	392	+		=	757
4.	406	+		=	777
5.	433	+		=	591
6.	494	+		=	974
7.	439	+		=	739
8.	253	+		=	463
9.	447	+		=	789
10.	421	+		=	799

Oefening 4
1.	246	+		=	464
2.	249	+		=	493
3.	317	+		=	445
4.	485	+		=	948
5.	176	+		=	309
6.	472	+		=	765
7.	483	+		=	613
8.	419	+		=	835
9.	440	+		=	823
10.	168	+		=	308

Erbijsommen met vlekken tot en met 1.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	421	+	158	=	579
2.	263	+	244	=	507
3.	417	+	173	=	590
4.	498	+	380	=	878
5.	445	+	248	=	693
6.	495	+	205	=	700
7.	205	+	164	=	369
8.	411	+	160	=	571
9.	275	+	197	=	472
10.	346	+	188	=	534

Oefening 2
1.	289	+	140	=	429
2.	399	+	233	=	632
3.	358	+	192	=	550
4.	444	+	145	=	589
5.	298	+	267	=	565
6.	460	+	260	=	720
7.	485	+	345	=	830
8.	421	+	176	=	597
9.	300	+	151	=	451
10.	387	+	369	=	756

Oefening 3
1.	395	+	250	=	645
2.	403	+	322	=	725
3.	392	+	365	=	757
4.	406	+	371	=	777
5.	433	+	158	=	591
6.	494	+	480	=	974
7.	439	+	300	=	739
8.	253	+	210	=	463
9.	447	+	342	=	789
10.	421	+	378	=	799

Oefening 4
1.	246	+	218	=	464
2.	249	+	244	=	493
3.	317	+	128	=	445
4.	485	+	463	=	948
5.	176	+	133	=	309
6.	472	+	293	=	765
7.	483	+	130	=	613
8.	419	+	416	=	835
9.	440	+	383	=	823
10.	168	+	140	=	308