Welk getal ontbreekt t/m 40?

Optellen

Oefening 1
1.	8	+		=	15
2.	14	+		=	27
3.	7	+		=	9
4.	11	+		=	14
5.	19	+		=	20
6.	13	+		=	20
7.	20	+		=	29
8.	9	+		=	14
9.	14	+		=	23
10.	19	+		=	37

Oefening 2
1.	10	+		=	12
2.	19	+		=	24
3.	14	+		=	15
4.	7	+		=	11
5.	6	+		=	12
6.	16	+		=	30
7.	14	+		=	27
8.	15	+		=	19
9.	5	+		=	8
10.	17	+		=	32

Oefening 3
1.	14	+		=	19
2.	20	+		=	26
3.	13	+		=	24
4.	8	+		=	12
5.	14	+		=	19
6.	15	+		=	28
7.	11	+		=	18
8.	11	+		=	21
9.	10	+		=	17
10.	18	+		=	22

Oefening 4
1.	18	+		=	26
2.	11	+		=	12
3.	20	+		=	34
4.	7	+		=	10
5.	7	+		=	11
6.	9	+		=	12
7.	18	+		=	35
8.	7	+		=	8
9.	15	+		=	21
10.	12	+		=	17

Welk getal ontbreekt t/m 40?
| ANTWOORDEN

Optellen

Oefening 1
1.	8	+	7	=	15
2.	14	+	13	=	27
3.	7	+	2	=	9
4.	11	+	3	=	14
5.	19	+	1	=	20
6.	13	+	7	=	20
7.	20	+	9	=	29
8.	9	+	5	=	14
9.	14	+	9	=	23
10.	19	+	18	=	37

Oefening 2
1.	10	+	2	=	12
2.	19	+	5	=	24
3.	14	+	1	=	15
4.	7	+	4	=	11
5.	6	+	6	=	12
6.	16	+	14	=	30
7.	14	+	13	=	27
8.	15	+	4	=	19
9.	5	+	3	=	8
10.	17	+	15	=	32

Oefening 3
1.	14	+	5	=	19
2.	20	+	6	=	26
3.	13	+	11	=	24
4.	8	+	4	=	12
5.	14	+	5	=	19
6.	15	+	13	=	28
7.	11	+	7	=	18
8.	11	+	10	=	21
9.	10	+	7	=	17
10.	18	+	4	=	22

Oefening 4
1.	18	+	8	=	26
2.	11	+	1	=	12
3.	20	+	14	=	34
4.	7	+	3	=	10
5.	7	+	4	=	11
6.	9	+	3	=	12
7.	18	+	17	=	35
8.	7	+	1	=	8
9.	15	+	6	=	21
10.	12	+	5	=	17