1) 4 - 3 2) 5 - 5 3) 8 + 4 4) 10 + 4 5) 20 + 5 6) 9 - 8 7) 10 - 5 8) 10 + 7 9) 18 + 8 10) 20 + 35

Cópia da Matemática: calcular mentalmente - ABNER

Theme

Options

Leaderboard

Open the box is an open-ended template. It does not generate scores for a leaderboard.

Switch template

Interactives

Restore auto-saved: ?