Welk getal ontbreekt t/m 40?

Optellen

Oefening 1
1.	8	+		=	11
2.	7	+		=	12
3.	16	+		=	18
4.	20	+		=	31
5.	11	+		=	12
6.	19	+		=	29
7.	18	+		=	32
8.	19	+		=	37
9.	12	+		=	21
10.	15	+		=	16

Oefening 2
1.	16	+		=	25
2.	8	+		=	15
3.	6	+		=	8
4.	3	+		=	5
5.	14	+		=	24
6.	7	+		=	13
7.	20	+		=	26
8.	20	+		=	38
9.	12	+		=	22
10.	19	+		=	20

Oefening 3
1.	14	+		=	15
2.	15	+		=	17
3.	12	+		=	13
4.	14	+		=	27
5.	17	+		=	22
6.	20	+		=	33
7.	13	+		=	23
8.	7	+		=	8
9.	11	+		=	14
10.	9	+		=	14

Oefening 4
1.	13	+		=	20
2.	15	+		=	23
3.	8	+		=	10
4.	12	+		=	18
5.	18	+		=	20
6.	5	+		=	7
7.	11	+		=	19
8.	13	+		=	20
9.	18	+		=	34
10.	17	+		=	23

Welk getal ontbreekt t/m 40?
| ANTWOORDEN

Optellen

Oefening 1
1.	8	+	3	=	11
2.	7	+	5	=	12
3.	16	+	2	=	18
4.	20	+	11	=	31
5.	11	+	1	=	12
6.	19	+	10	=	29
7.	18	+	14	=	32
8.	19	+	18	=	37
9.	12	+	9	=	21
10.	15	+	1	=	16

Oefening 2
1.	16	+	9	=	25
2.	8	+	7	=	15
3.	6	+	2	=	8
4.	3	+	2	=	5
5.	14	+	10	=	24
6.	7	+	6	=	13
7.	20	+	6	=	26
8.	20	+	18	=	38
9.	12	+	10	=	22
10.	19	+	1	=	20

Oefening 3
1.	14	+	1	=	15
2.	15	+	2	=	17
3.	12	+	1	=	13
4.	14	+	13	=	27
5.	17	+	5	=	22
6.	20	+	13	=	33
7.	13	+	10	=	23
8.	7	+	1	=	8
9.	11	+	3	=	14
10.	9	+	5	=	14

Oefening 4
1.	13	+	7	=	20
2.	15	+	8	=	23
3.	8	+	2	=	10
4.	12	+	6	=	18
5.	18	+	2	=	20
6.	5	+	2	=	7
7.	11	+	8	=	19
8.	13	+	7	=	20
9.	18	+	16	=	34
10.	17	+	6	=	23