《圆锥的体积》口算练习

20%×5=

1-35%=%

0.25×40=

1÷25%=

$（3.5\% -0.035）\times 2\frac {1} {4}$
          =

3÷30%=

$\frac {1} {7}\times 14$=

$\frac {1} {3}÷3$=

$\frac {3} {4}÷75\% $

=

400×12.5%=

8×125%=

$1÷\frac {4} {7}$=