混合

[0] (+7) ✕ (-9) =

-63

[1] (-19) − (-15) =

-4

[2] (-8) ✕ (+2) =

-16

[3] (+10) + (-16) =

-6

[4] (+6) ✕ (+6) =

+36

[5] (+16) + (-8) =

+8

[6] (-8) + (-12) =

-20

[7] (+9) ✕ (+2) =

+18

[8] (+9) + (+8) =

+17

[9] (+17) + (+12) =

+29




加法  減法  乗法  混合

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