Welk getal ontbreekt t/m 40?

Optellen

Oefening 1
1.	14	+		=	16
2.	2	+		=	3
3.	10	+		=	13
4.	19	+		=	22
5.	16	+		=	25
6.	13	+		=	21
7.	8	+		=	14
8.	4	+		=	5
9.	16	+		=	22
10.	20	+		=	29

Oefening 2
1.	11	+		=	19
2.	6	+		=	10
3.	13	+		=	14
4.	17	+		=	27
5.	6	+		=	7
6.	14	+		=	15
7.	13	+		=	22
8.	18	+		=	36
9.	20	+		=	38
10.	11	+		=	19

Oefening 3
1.	12	+		=	22
2.	18	+		=	24
3.	4	+		=	6
4.	10	+		=	12
5.	20	+		=	33
6.	18	+		=	28
7.	5	+		=	7
8.	11	+		=	16
9.	5	+		=	8
10.	11	+		=	18

Oefening 4
1.	8	+		=	11
2.	16	+		=	17
3.	16	+		=	29
4.	18	+		=	30
5.	15	+		=	28
6.	8	+		=	9
7.	11	+		=	21
8.	20	+		=	27
9.	6	+		=	9
10.	8	+		=	12

Welk getal ontbreekt t/m 40?
| ANTWOORDEN

Optellen

Oefening 1
1.	14	+	2	=	16
2.	2	+	1	=	3
3.	10	+	3	=	13
4.	19	+	3	=	22
5.	16	+	9	=	25
6.	13	+	8	=	21
7.	8	+	6	=	14
8.	4	+	1	=	5
9.	16	+	6	=	22
10.	20	+	9	=	29

Oefening 2
1.	11	+	8	=	19
2.	6	+	4	=	10
3.	13	+	1	=	14
4.	17	+	10	=	27
5.	6	+	1	=	7
6.	14	+	1	=	15
7.	13	+	9	=	22
8.	18	+	18	=	36
9.	20	+	18	=	38
10.	11	+	8	=	19

Oefening 3
1.	12	+	10	=	22
2.	18	+	6	=	24
3.	4	+	2	=	6
4.	10	+	2	=	12
5.	20	+	13	=	33
6.	18	+	10	=	28
7.	5	+	2	=	7
8.	11	+	5	=	16
9.	5	+	3	=	8
10.	11	+	7	=	18

Oefening 4
1.	8	+	3	=	11
2.	16	+	1	=	17
3.	16	+	13	=	29
4.	18	+	12	=	30
5.	15	+	13	=	28
6.	8	+	1	=	9
7.	11	+	10	=	21
8.	20	+	7	=	27
9.	6	+	3	=	9
10.	8	+	4	=	12