Welk getal ontbreekt t/m 100?

Optellen

Oefening 1
1.	49	+		=	72
2.	20	+		=	30
3.	43	+		=	74
4.	34	+		=	57
5.	49	+		=	71
6.	47	+		=	59
7.	50	+		=	85
8.	38	+		=	74
9.	50	+		=	71
10.	47	+		=	81

Oefening 2
1.	44	+		=	67
2.	30	+		=	45
3.	47	+		=	67
4.	46	+		=	91
5.	40	+		=	75
6.	38	+		=	57
7.	40	+		=	55
8.	37	+		=	49
9.	30	+		=	59
10.	47	+		=	67

Oefening 3
1.	48	+		=	71
2.	40	+		=	75
3.	50	+		=	97
4.	31	+		=	47
5.	47	+		=	92
6.	42	+		=	73
7.	35	+		=	58
8.	44	+		=	88
9.	42	+		=	55
10.	15	+		=	27

Oefening 4
1.	29	+		=	57
2.	48	+		=	94
3.	15	+		=	30
4.	44	+		=	78
5.	48	+		=	77
6.	35	+		=	60
7.	37	+		=	61
8.	45	+		=	67
9.	19	+		=	29
10.	50	+		=	83

Welk getal ontbreekt t/m 100?
| ANTWOORDEN

Optellen

Oefening 1
1.	49	+	23	=	72
2.	20	+	10	=	30
3.	43	+	31	=	74
4.	34	+	23	=	57
5.	49	+	22	=	71
6.	47	+	12	=	59
7.	50	+	35	=	85
8.	38	+	36	=	74
9.	50	+	21	=	71
10.	47	+	34	=	81

Oefening 2
1.	44	+	23	=	67
2.	30	+	15	=	45
3.	47	+	20	=	67
4.	46	+	45	=	91
5.	40	+	35	=	75
6.	38	+	19	=	57
7.	40	+	15	=	55
8.	37	+	12	=	49
9.	30	+	29	=	59
10.	47	+	20	=	67

Oefening 3
1.	48	+	23	=	71
2.	40	+	35	=	75
3.	50	+	47	=	97
4.	31	+	16	=	47
5.	47	+	45	=	92
6.	42	+	31	=	73
7.	35	+	23	=	58
8.	44	+	44	=	88
9.	42	+	13	=	55
10.	15	+	12	=	27

Oefening 4
1.	29	+	28	=	57
2.	48	+	46	=	94
3.	15	+	15	=	30
4.	44	+	34	=	78
5.	48	+	29	=	77
6.	35	+	25	=	60
7.	37	+	24	=	61
8.	45	+	22	=	67
9.	19	+	10	=	29
10.	50	+	33	=	83