Created by
Intellect
- Math
- Abacus 5 complements
- Age 6-12
-
level: Grade 1 to 3
- English
Author's Instructions
Abacus direct sums, +5 complements and -5 complements sums
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Abacus Test
Created by
Intellect
Author's Instructions
Abacus direct sums, +5 complements and -5 complements sums