10﹣4.2= 8×12.5%= 26.26÷26= 1.2﹣= ÷20=400÷5÷8= 70+30×2= 0.25÷= +2= 0.3+=
计算 0.62=×= 4×60%= 0×=÷2= 10÷=×3.6= 0.875÷0.125=
找准对应.(12)
×15=÷=÷50%= 8×25%=×0×=﹣= 0.5+=×=÷3=(﹣)×30=
16÷0.25====== 1﹣= 2.25+×=====
直接写得数×8=×= 81÷=÷= 63÷=÷=××= 3×÷3×= 36×25%=(﹣)×24=