12×3−4+?=27 12\times3-4+?=27 12×3−4+?=27
According to the rules of operations, we first place the multiplication exercise in parentheses:
(12×3)−4+?=27 (12\times3)-4+?=27 (12×3)−4+?=27
We solve the exercise in parentheses:
12×3=36 12\times3=36 12×3=36
We obtain the exercise:
36−4+?=27 36-4+?=27 36−4+?=27
We reduce:
32+?=27 32+?=27 32+?=27
We move 32 to the other side and change to the correct sign:
?=27−32 ?=27-32 ?=27−32
?=−5 ?=-5 ?=−5
−5 -5 −5