4,86 * 0,25 * 40
= 4,86 * ( 0,25 * 40 )
= 4,86 * 10
= 48,6
4,86×0,25×40= 4,86×(0,25×4)×10
=4,86×1×10
=4,86×10
=48,6
0,8×96+1,6×2=0,8×96+0,8×2×2
=0,8×96+0,8×4
=0,8×(96+4)
=0,8×100
=80
72,9×99+72+0,9=72,9×99+72,9
=72,9×(99+1)
=72,9×100
=7290
a)4,86*0,25*40
=4,86*(0,25*40)
=4,86*10
=48,6
b)0,8*96+1,6*2
=0,8*96+0,8*2*2
=0,8*96+0,8*(2*2)
=0,8*96+0,8*4
=0,8*(96+4)
=0,8*100
=80
c)72,9*99+72+0,9
=72,9*99+(72+0,9)
=72,9*99+72,9*1
=72,9*(99+1)
=72,9*100
=7290
d)96,28*3,527+3,527*3,72
=3,527*(96,28+3,72)
=3,527*100
=352,7
e)0,125*6,94*80
=(0,125*80)*6,94
=10*6,94
=69,4