脱式计算(能简算的要简算).(1)10.2×43 (2)3.64÷4+4.36×25% (3)[﹣()]×.
用竖式计算.32.5+2.7= 4.3+27.5=78×22= 206×9=
直接写得数.4.8×= 3.6÷0.9= ÷4= ÷×= 6÷15%=125%×8= 0.1×20%= (25%﹣)×7.5= 0.125×0.125= 0.36÷0.6=1﹣23%﹣47%= ×5÷×5=
5×4= 6.4÷0.8= 7.2×0.01= 10÷4= 0.36×2= 1÷0.125=0.25×8= 8.1÷0.3= 0.1×0.02= 1.6÷16= 2.4×2.5= 3.2÷1.6=1.5+0.25×4= 3.5+7.6= 3×0.2×0.5=
2.26×37590×2904500÷80.
直接写得数. (1)1.3×0.2= (2)0.4÷8= (3)3.2﹣2.9= (4)0.24×3= (5)12.5+0.5=(6)0.25×4= (7)12.5×0.8= (8)1.3×30= (9)2﹣0.98= (10)8.4+3=