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Main / Brain Training

Arithmetic ability: level two: mental addition of three-digit numbers.

Return to exercise selection

380 + 617 =

757 + 109 =

966 + 215 =

100 + 850 =

414 + 825 =

618 + 261 =

622 + 440 =

534 + 187 =

344 + 322 =

332 + 486 =

Return to exercise selection



Main / Brain training

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metodorf.com



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