Toán tính nhanh (nếu có) a) 65.(-36)+36.(-35) 150-(-50)+79-(23+79) 06/12/2021 By Alexandra tính nhanh (nếu có) a) 65.(-36)+36.(-35) 150-(-50)+79-(23+79)
a.65.(-36)+36.(-35)=-65.36+36.(-35)=(-65-35).36=-100.36=-3600 b. 150-(-50)+79-(23+79)=150+50+79-23-79=100-23+(79-79)=200-23=177 Trả lời
Đáp án: a, 65.(-36)+36.(-35) = (-65).36+36.(-35) =36.(-65-35) =36.(-100) =-3600 150-(-50)+79-(23+79) =150+50+79-23-79 =200+(79-79)-23 =200-23 =177 Trả lời
a.65.(-36)+36.(-35)=-65.36+36.(-35)=(-65-35).36=-100.36=-3600
b. 150-(-50)+79-(23+79)=150+50+79-23-79=100-23+(79-79)=200-23=177
Đáp án:
a, 65.(-36)+36.(-35)
= (-65).36+36.(-35)
=36.(-65-35)
=36.(-100)
=-3600
150-(-50)+79-(23+79)
=150+50+79-23-79
=200+(79-79)-23
=200-23
=177