Brug naar tienvoud

Hoofdmenu Eentje per keer  🖨

Reken uit

1. \(\ldots + 9 = 20\)
2. \(44 + \ldots = 50\)
3. \(\ldots + 7 = 90\)
4. \(78 + \ldots = 80\)
5. \(43 + \ldots = 50\)
6. \(\ldots + 2 = 100\)
7. \(\ldots + 5 = 70\)
8. \(17 + \ldots = 20\)
9. \(\ldots + 4 = 80\)
10. \(\ldots + 6 = 100\)
11. \(26 + \ldots = 30\)
12. \(\ldots + 1 = 100\)

---

Reken uit

Verbetersleutel

1. \(11 + 9 =20\)
2. \(44 + 6 = 50\)
3. \(83 + 7 =90\)
4. \(78 + 2 = 80\)
5. \(43 + 7 = 50\)
6. \(98 + 2 =100\)
7. \(65 + 5 =70\)
8. \(17 + 3 = 20\)
9. \(76 + 4 =80\)
10. \(94 + 6 =100\)
11. \(26 + 4 = 30\)
12. \(99 + 1 =100\)