花店有88支玫瑰花,每20支扎一束,可以扎成几束,还剩几支?
脱式计算(能简算的要简算)2.4×1.5+3.6×1.5 0.125×2.5×8 7.38﹣5.14+3.62﹣2.8617.2﹣7.2×0.6 8.9×9.9 41.9﹣2.08﹣7.92.
用简便方法计算.①7.28﹣(0.8+3.28) ②73.8﹣1.64﹣13.8 ③13.25+5.82+6.75+4.18④12.7﹣4.8﹣5.2 ⑤3.1+25.78+6.9 ⑥9.7+10.3﹣6.7.
计算(1)8.01+99×8.01(2)125×(8+0.8+0.08+0.008)(3)++++(4)(0.4+)÷(﹣0.75)×0.5(5)989898×999999÷10101÷111111.
7.3×8.26+1.74×7.3 2.07×8÷1.24×88×0.25 2.38×4.1+5.8×2.38+0.238.
计算,能用简算的要简算.0.85×101 5.29÷2.3﹣0.1×010.28÷35 8﹣4.68÷4.5×(0.25+0.5)2.5×1.25×32 25.7×3.29+6.71×25.7.