计算下面各题,能简算的要简算。6_3Y,J2`6g4l3R
(1)6.75-2.9-3.1=;a9D8b2w6_3Y,J2`6g4l3R
算式:提示;x6@(y6_3Y,J2`6g4l3R
(2)125×(860+240÷12)=2U7b*D8l-L){6M;}(?6M:w6_3Y,J2`6g4l3R
算式:提示8{1m)c8V;O;D6T+F:n/H1h*S2G9w0c6_3Y,J2`6g4l3R
(3)23.61+5.7-3.61=3i:}+s(^3R4e.O9_6R/h,Z)[)@3l6_3Y,J2`6g4l3R
算式:提示'I.@.z9v(`5q*Z(Y6_3Y,J2`6g4l3R
(4)45×37+73×45-10×45=+};e(N.f6_3Y,J2`6g4l3R
算式:提示)e2k6o)P0t)o1f6`+S6_3Y,J2`6g4l3R