3.7+0.56= 1.3﹣0.8=18.5÷100= 0.66+2.2=6.22﹣3.2= 4.9÷0.01=12.7﹣7.5+2.3= 1.25×0.8﹣0.1=0.6+0.6÷0.1=
用简便方法计算. 3892﹣2998= 23﹣2﹣7=4×5﹣4×4.375=
用简便方法计算 ①8.36﹣0.75﹣②99+992③×25+×10.
简算 ①56×(﹣+)②32×1.25×0.25 ③78.9×99+78.9④57.2﹣0.4﹣11.6.
脱式计算,能简算的要简算 9.81×0.1+0.5×98.1+0.049×9812÷[(2﹣1.2)×+0.05] 100﹣32×0.125×0.25 [1﹣(﹣)]×.
用简便方法计算(写出简算过程) ①(++)×12②18.93﹣6﹣3 ③163×﹣0.75×62﹣75%④7÷+1×2.