6 + (-5) =?

• 1

• -1

• 11

• -11

-8+8 = ?

• 16

• -16

• 0

• 1

(-19) + (-19) =?

• 0

• 38

• -38

• 28

-20 + 3 = ?

• -17

• 17

• -23

• 23

(-27) + 17 = ?

0 - (-5) = ?

• 0

• 5

• -5

• 4

(-25 ) - 16 =?

• -9

• 9

• 41

• -41

ข้อใดถูกต้อง (คำตอบมีมากกว่า1ข้อ)

• 5 - 8 = -3

• 0 - (-12) = 0

• (-9) - 6 = -3

• 7 - (-8) = 15

(-35) - (-20) = ?

• -15

• 15

• -55

• 55

(-28) - (-2) = ?