初一上册数学51页5题的(9)—(14)小题的答案(只要过程)
(9)(-0.02)×(-20)×(-5)×4.5
(10)(-6.5)×(-2)÷(-3分之1)÷(-5)
(11)6+(-5分之1)-2-(-1.5)
(12)-66×4-(-2.5)÷(-0.1)
(13)(-2)²×5-(-2)³÷4
(14)-(3-5)+3²×(1-3)