Tientallen plus tientallen tot aan het tiental

Erbijsommen

Oefening 1
1.	85 + 15 =
2.	56 + 44 =
3.	13 + 87 =
4.	11 + 89 =
5.	25 + 25 =
6.	37 + 13 =
7.	45 + 15 =
8.	21 + 69 =
9.	13 + 27 =
10.	72 + 18 =

Oefening 2
1.	52 + 18 =
2.	74 + 26 =
3.	52 + 48 =
4.	28 + 52 =
5.	75 + 15 =
6.	66 + 34 =
7.	45 + 45 =
8.	26 + 64 =
9.	58 + 42 =
10.	44 + 26 =

Oefening 3
1.	51 + 49 =
2.	67 + 23 =
3.	76 + 24 =
4.	62 + 18 =
5.	57 + 13 =
6.	72 + 28 =
7.	63 + 27 =
8.	76 + 24 =
9.	75 + 25 =
10.	22 + 48 =

Oefening 4
1.	78 + 12 =
2.	74 + 26 =
3.	87 + 13 =
4.	15 + 35 =
5.	64 + 16 =
6.	25 + 25 =
7.	87 + 13 =
8.	47 + 23 =
9.	74 + 16 =
10.	18 + 22 =

Tientallen plus tientallen tot aan het tiental
| ANTWOORDEN

Erbijsommen

Oefening 1
1.	85 + 15 =	100
2.	56 + 44 =	100
3.	13 + 87 =	100
4.	11 + 89 =	100
5.	25 + 25 =	50
6.	37 + 13 =	50
7.	45 + 15 =	60
8.	21 + 69 =	90
9.	13 + 27 =	40
10.	72 + 18 =	90

Oefening 2
1.	52 + 18 =	70
2.	74 + 26 =	100
3.	52 + 48 =	100
4.	28 + 52 =	80
5.	75 + 15 =	90
6.	66 + 34 =	100
7.	45 + 45 =	90
8.	26 + 64 =	90
9.	58 + 42 =	100
10.	44 + 26 =	70

Oefening 3
1.	51 + 49 =	100
2.	67 + 23 =	90
3.	76 + 24 =	100
4.	62 + 18 =	80
5.	57 + 13 =	70
6.	72 + 28 =	100
7.	63 + 27 =	90
8.	76 + 24 =	100
9.	75 + 25 =	100
10.	22 + 48 =	70

Oefening 4
1.	78 + 12 =	90
2.	74 + 26 =	100
3.	87 + 13 =	100
4.	15 + 35 =	50
5.	64 + 16 =	80
6.	25 + 25 =	50
7.	87 + 13 =	100
8.	47 + 23 =	70
9.	74 + 16 =	90
10.	18 + 22 =	40