Erbijsommen met vlekken tot en met 100

Erbijsommen

Oefening 1
1.	21	+		=	35
2.	31	+		=	46
3.	25	+		=	46
4.	50	+		=	78
5.	48	+		=	80
6.	18	+		=	29
7.	38	+		=	50
8.	28	+		=	49
9.	29	+		=	42
10.	49	+		=	88

Oefening 2
1.	47	+		=	76
2.	31	+		=	49
3.	50	+		=	79
4.	39	+		=	58
5.	48	+		=	64
6.	29	+		=	51
7.	33	+		=	51
8.	42	+		=	79
9.	49	+		=	77
10.	48	+		=	78

Oefening 3
1.	42	+		=	66
2.	50	+		=	79
3.	49	+		=	77
4.	48	+		=	66
5.	50	+		=	98
6.	47	+		=	69
7.	29	+		=	47
8.	39	+		=	64
9.	25	+		=	41
10.	38	+		=	56

Oefening 4
1.	41	+		=	76
2.	24	+		=	35
3.	30	+		=	55
4.	45	+		=	83
5.	46	+		=	86
6.	50	+		=	99
7.	48	+		=	80
8.	13	+		=	24
9.	38	+		=	61
10.	29	+		=	52

Erbijsommen met vlekken tot en met 100
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	21	+	14	=	35
2.	31	+	15	=	46
3.	25	+	21	=	46
4.	50	+	28	=	78
5.	48	+	32	=	80
6.	18	+	11	=	29
7.	38	+	12	=	50
8.	28	+	21	=	49
9.	29	+	13	=	42
10.	49	+	39	=	88

Oefening 2
1.	47	+	29	=	76
2.	31	+	18	=	49
3.	50	+	29	=	79
4.	39	+	19	=	58
5.	48	+	16	=	64
6.	29	+	22	=	51
7.	33	+	18	=	51
8.	42	+	37	=	79
9.	49	+	28	=	77
10.	48	+	30	=	78

Oefening 3
1.	42	+	24	=	66
2.	50	+	29	=	79
3.	49	+	28	=	77
4.	48	+	18	=	66
5.	50	+	48	=	98
6.	47	+	22	=	69
7.	29	+	18	=	47
8.	39	+	25	=	64
9.	25	+	16	=	41
10.	38	+	18	=	56

Oefening 4
1.	41	+	35	=	76
2.	24	+	11	=	35
3.	30	+	25	=	55
4.	45	+	38	=	83
5.	46	+	40	=	86
6.	50	+	49	=	99
7.	48	+	32	=	80
8.	13	+	11	=	24
9.	38	+	23	=	61
10.	29	+	23	=	52