Erbijsommen met vlekken tot en met 1.000

Erbijsommen

Oefening 1
1.	254	+		=	409
2.	324	+		=	639
3.	476	+		=	771
4.	229	+		=	415
5.	208	+		=	401
6.	410	+		=	621
7.	171	+		=	300
8.	396	+		=	606
9.	313	+		=	471
10.	284	+		=	452

Oefening 2
1.	378	+		=	727
2.	245	+		=	384
3.	399	+		=	639
4.	333	+		=	443
5.	249	+		=	489
6.	259	+		=	456
7.	396	+		=	717
8.	444	+		=	832
9.	359	+		=	471
10.	487	+		=	914

Oefening 3
1.	496	+		=	600
2.	467	+		=	864
3.	388	+		=	675
4.	329	+		=	561
5.	391	+		=	752
6.	149	+		=	272
7.	301	+		=	465
8.	278	+		=	544
9.	261	+		=	459
10.	476	+		=	593

Oefening 4
1.	202	+		=	395
2.	497	+		=	712
3.	319	+		=	542
4.	433	+		=	724
5.	417	+		=	631
6.	249	+		=	390
7.	446	+		=	856
8.	341	+		=	516
9.	226	+		=	395
10.	409	+		=	619

Erbijsommen met vlekken tot en met 1.000
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	254	+	155	=	409
2.	324	+	315	=	639
3.	476	+	295	=	771
4.	229	+	186	=	415
5.	208	+	193	=	401
6.	410	+	211	=	621
7.	171	+	129	=	300
8.	396	+	210	=	606
9.	313	+	158	=	471
10.	284	+	168	=	452

Oefening 2
1.	378	+	349	=	727
2.	245	+	139	=	384
3.	399	+	240	=	639
4.	333	+	110	=	443
5.	249	+	240	=	489
6.	259	+	197	=	456
7.	396	+	321	=	717
8.	444	+	388	=	832
9.	359	+	112	=	471
10.	487	+	427	=	914

Oefening 3
1.	496	+	104	=	600
2.	467	+	397	=	864
3.	388	+	287	=	675
4.	329	+	232	=	561
5.	391	+	361	=	752
6.	149	+	123	=	272
7.	301	+	164	=	465
8.	278	+	266	=	544
9.	261	+	198	=	459
10.	476	+	117	=	593

Oefening 4
1.	202	+	193	=	395
2.	497	+	215	=	712
3.	319	+	223	=	542
4.	433	+	291	=	724
5.	417	+	214	=	631
6.	249	+	141	=	390
7.	446	+	410	=	856
8.	341	+	175	=	516
9.	226	+	169	=	395
10.	409	+	210	=	619