Question

脱式计算：2.44÷0.4+18.92×7.5 　　　　　 1...

脱式计算：2.44÷0.4+18.92×7.5 　　　　　 13.5×0.68-4.1×0.76150+（7.1-3.05）×18[78-（9.41+28.99）]÷0.180.08×0.5+8.4÷0.6 　　　　　 0.3×2.6+3×0.74．

Answer 1

（1）2.44÷0.4+18.92×7.5
=6.1+141.9
=148

（2）13.5×0.68-4.1×0.76
=9.18-3.116
=6.064

（3）150+（7.1-3.05）×18
=150+4.05×18
=150+72.9
=222.9

（4）[78-（9.41+28.99）]÷0.18
=[78-38.4]÷0.18
=39.6÷0.18
=220

（5）0.08×0.5+8.4÷0.6
=0.04+14
=14.04

（6）0.3×2.6+3×0.74
=0.3×2.6+0.3×7.4
=0.3×（2.6+7.4）
=0.3×10
=3