體積!!!!!!!

水池內水的體積:
5x4x(1.5x2/3)
=5x4x(3/2x2/3)
=5x4x1
=20(立方米)
我都5 sure,今年先教體積,希望啱&可以幫到你!>-

5*4*1.5*3/2
=20*1.5*3/2
=30*3/2
=20(m^3)

水池內水的體積:

(5x4x1.5)x2/3

=30x2/3

=20m³

水池內水的體積:
5x4x1.5x2/3
=20x1.5x2/3
=30x2/3
=20(m^3)

5x4x(1.5x2/3)
=20 (m^3)

水池內水的体積是:
5*4*(1.5*2/3)
=20*1
=20 m^3

5*1.5*3/2

5*4*(1.5*3分之2)

=5*4*1

=20(立方米)

2008-01-14 17:44:48 補充：
3分之2用分數表達

水池的內部體積
長5m,闊4m,高1.5m = 30m3

水池內水的體積: 30m x 2/3 = 20m3

5x4x(1.5x2/3)