Вычислить удобным способом: 1) 4*27*25= 2) 125*73*8= 3) 8*1/6*125*12= 4) 2/3*25*3/2*4=

Question

Вычислить удобным способом:
1) 4*27*25=
2) 125*73*8=
3) 8*1/6*125*12=
4) 2/3*25*3/2*4=

Answer 1

1) 4•27•25=(4•25)•27=100•27=2700
2) 125•73•8=(125•8)•73=1000•73=73000
3)8•1/6•125•12=(8•125)•(1/6•12)=1000•2=2000
4) 2/3•25•3/2•4=(2/3•3/2)•(25•4)=1•100=100

Answer 2

1) 4 × 27 × 25 = (4 × 25) × 27 = 100 × 27 = 2700
2) 125 × 73 × 8 = (125 × 8) × 73 = 1000 × 73 = 73000
3) 8 × 1/6 × 125 × 12 = (8 × 125) × (1/6 × 12) = 1000 × 2 = 2000
4) 2/3 × 25 × 3/2 × 4 = (25 × 4) × (2/3 × 3/2) = 100 × 1 = 100