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2.418.011
tests have already been made here ?
Also try how good you are at mental arithmetic!
Arithmetic without time? Go to leren-rekenen.nl
Here you learn arithmetic error-free for FREE
| the OPTELSOMMEN 10-20 in 1 minute has not been made yet this month. |
| naam | number correct | number done | |
| Derk | 35 | 40 | 3 May |
| Arana Lahiri | 11 | 29 | 3 May |
| Izaïn | 10 | 12 | 2 May |
| Izaïn | 6 | 7 | 1 May |
| Izaïn | 3 | 3 | 1 May |
| Izaïn | 3 | 4 | 2 May |
| Izaïn | 2 | 2 | 1 May |
| naam | number correct | number done | |
| 14 | 20 | 3 May |
| naam | number correct | number done | |
| Derk | 86 | 91 | 3 May |
| 4 | 5 | 3 May |
| naam | number correct | number done | |
| 21 | 25 | 4 May |
| naam | number correct | number done | |
| dat was NIET de hoog | 22 | 28 | 1 May |