口算。18÷3=                          15÷5=   &#160

口算。18÷3=                          15÷5=                        30÷6=                  16÷4=                         20÷5=                          30÷5=                        18÷6=                   24÷4=    36÷6=                          20÷4=                        12÷6=                   15÷3=
0.3

(0)

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