直接写得数0.75﹣0.35= 0.23+0.72= 0.07×10= 2.4+6=1﹣0.28= 0.1+0.001= 100×0.46= 0.125×8=42÷100= 0.5﹣0.05= 4×0.25= 0.93÷0.3=1.3+0.78= 16÷5= 0.12÷0.3= 1.24﹣0.9﹣0.1=
直接写得数.×6= 253﹣99= 4.5×100= 4×+= 20÷= 10.57﹣(6.57+2)=
直接写数对又快:+= ﹣= 2012×=56÷11×165÷7= ×[0.75+(﹣)]= 40÷[×(+)]=
口算.80×20%= 24×0.2= 5﹣= ÷3= 32=36÷12%= 1﹣0.3= 2.1+3.25= ×1.8= (0.2)2×52=
直接写出得数.2.8÷0.125= 4.38﹣3.42+5.62﹣2.08= == 9.08×9+9.08= =
直接写出得数.④36.36÷36=②×=③2.5×1.5×4=