七年级数学上册基本计算题练习 (150)

(+3.7)×(-0.2)= 15×(+3)+(+2)= (+8.6)+(-1)= 7-(-3)+(-8)= (+5.5)+(-0.9)= 19×(+6)-(+2)= (-7)×(-9)= 8×(+6

腾讯文库七年级数学上册基本计算题练习七年级数学上册基本计算题练习 (150)