直接写出得数.25×12= 1.7÷100= 129﹣18= 9.8﹣1.8﹣6.5= 40+0÷26=6400÷400= 0.45×1000= 25﹣25÷5= 45×4+4×55= (9+8)÷(9﹣8)=
脱式计算. 4.67﹣(2.98+0.67) 73.8×16﹣73.8×6.
计算,能简算的要简算. 3.2×1.8+2.54 198×0.51 1.25×32×2.5 0.8×72.4×12.5 5.2×10.1 2.5×3.7+6.3×2.5.
0.46×7.5+0.46×2.5.
脱式计算,能简便的要用简便方法计算. 0.36×1.5×0.40.05×3.2×4026×15.7+15.7×74 3.78×0.5﹣0.653.98+13.4×0.24(9.37+9.37+9.37+9.37)×2.5.
能简算的要用简便方法计算 24.1×1.5+7.59×15(3.7+17×0.4)÷3.575.36÷12﹣4.32×0.5 8.8×0.1257.6×5.3+3.7×7.66.6÷(0.68+0.42)