脱式计算,能简算的要简算.
①99×0.625+0.625
②(53.76﹣17.49)÷1.8
③(0.8×7+4.56÷1.9)×12.5
④15.73﹣(2.17+0.73)﹣1.83.
脱式计算,能简算的要简算.
①99×0.625+0.625
②(53.76﹣17.49)÷1.8
③(0.8×7+4.56÷1.9)×12.5
④15.73﹣(2.17+0.73)﹣1.83.