Erbijsommen met vlekken tot en met 500

Erbijsommen

Oefening 1
1.	201	+		=	355
2.	159	+		=	266
3.	183	+		=	261
4.	163	+		=	250
5.	222	+		=	363
6.	157	+		=	259
7.	181	+		=	304
8.	246	+		=	445
9.	200	+		=	256
10.	241	+		=	465

Oefening 2
1.	240	+		=	321
2.	163	+		=	235
3.	202	+		=	271
4.	185	+		=	342
5.	180	+		=	348
6.	83	+		=	133
7.	153	+		=	275
8.	220	+		=	371
9.	118	+		=	234
10.	82	+		=	153

Oefening 3
1.	222	+		=	437
2.	224	+		=	417
3.	250	+		=	429
4.	233	+		=	404
5.	224	+		=	417
6.	143	+		=	251
7.	166	+		=	297
8.	187	+		=	329
9.	221	+		=	324
10.	122	+		=	175

Oefening 4
1.	133	+		=	210
2.	236	+		=	326
3.	220	+		=	421
4.	191	+		=	336
5.	217	+		=	366
6.	189	+		=	244
7.	131	+		=	241
8.	229	+		=	429
9.	109	+		=	180
10.	129	+		=	207

Erbijsommen met vlekken tot en met 500
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	201	+	154	=	355
2.	159	+	107	=	266
3.	183	+	78	=	261
4.	163	+	87	=	250
5.	222	+	141	=	363
6.	157	+	102	=	259
7.	181	+	123	=	304
8.	246	+	199	=	445
9.	200	+	56	=	256
10.	241	+	224	=	465

Oefening 2
1.	240	+	81	=	321
2.	163	+	72	=	235
3.	202	+	69	=	271
4.	185	+	157	=	342
5.	180	+	168	=	348
6.	83	+	50	=	133
7.	153	+	122	=	275
8.	220	+	151	=	371
9.	118	+	116	=	234
10.	82	+	71	=	153

Oefening 3
1.	222	+	215	=	437
2.	224	+	193	=	417
3.	250	+	179	=	429
4.	233	+	171	=	404
5.	224	+	193	=	417
6.	143	+	108	=	251
7.	166	+	131	=	297
8.	187	+	142	=	329
9.	221	+	103	=	324
10.	122	+	53	=	175

Oefening 4
1.	133	+	77	=	210
2.	236	+	90	=	326
3.	220	+	201	=	421
4.	191	+	145	=	336
5.	217	+	149	=	366
6.	189	+	55	=	244
7.	131	+	110	=	241
8.	229	+	200	=	429
9.	109	+	71	=	180
10.	129	+	78	=	207