Did you know that
2.482.990
tests have already been made here ?
Also try how good you are at mental arithmetic!
Arithmetic without time? Go to leren-rekenen.nl
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2.482.990
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 | |
| tessa | 48 | 48 | 1 November |
| tessa | 37 | 40 | 1 November |
| tessa | 37 | 39 | 1 November |
| tessa | 37 | 38 | 1 November |
| tessa | 35 | 36 | 1 November |
| bailey | 10 | 13 | 1 November |
| naam | number correct | number done | |
| 31 | 37 | 1 November | |
| 22 | 26 | 1 November |
| the OPTELSOMMEN 10-20 in 4 minutes has not been made yet this month. |
| the OPTELSOMMEN 10-20 in 5 minutes has not been made yet this month. |
| the OPTELSOMMEN 10-20 in 10 minutes has not been made yet this month. |