列竖式计算.289×32 605×74 430×22209×67 70×450 330×88.
口算.7.2﹣1.2= 0.8×0.7= 3÷0.2= 3.2÷0.1=0.64÷8= 0.3×0.3= 0.12÷0.4= 1.4×100=
78.5+36.27=(验算)10.5÷0.21=(验算)
用竖式计算:8.84+1.16 2.05×2.4 0.988÷0.13.
1.26+3.74= 4.32﹣2.23= 8.79+0.31= 6.54﹣5.4= 1.25+4.75=8.73+2.27= 0.25×12= 0.456×100= 9.07×1000= 1.76÷10=9.6÷0.3= 2.4÷0.06= 0÷5.9= 5÷100=
竖式计算1.92﹣0.71 5.7×0.25 38.5÷0.77