a, 0,25 x 611,7 x 40
= 611,7 x 40 : 4
= 6117
b, 6,28 x 18,24 + 18,24 x 3,27
= 18,24 x (6,28 + 3,27)
= 18,24 x 10
= 182,4
c, 36,4 x 99 + 36 + 0,4
= 36,4 x 99 + 36,4
= 36,4 x (99 + 1)
= 36,4 x 100
= 364
a) =0,25 x 40 x 611,7
= 6,117
b)=18,24 x(6,28 +3,27)
=174,192
c)=xin lỗi mình ko bít cái câu ni cho tớ đúng nghe bạn
a.0.25*611.7*40
=0.25*40*611.7
=10*611.7
=6117
b.6.28*18.24*18.24*3.27
=18.24*[6.28+3.27]
=18.24*10.5
=18.24*[10+0.5]
=18.24*10+18.24*0.5
=182.4+9.12 [18.24*0.5=18.24:2]
=191.52
c. 36.4*99+36+0.4
=36.4*99+[36+0.4]
=36.4*99+36.4
=36.4*[99+1]
=36.4*100
=3640
\(a.0,25.611,7.40=\left(0,25.40\right).611,7=10.611,7=6117\)
\(b.6,28.18,24+18,24.3,27=18,24.\left(6,28+3,27\right)=18,24.10=182,4\)
\(36,4.99+36+0,4=36,4.99+36,4=36,4.99+36,4.1=36,4.\left(99+1\right)\)=36,4.100=3640