口算下面各题.(1)÷= (2)0÷= (3)1÷= (4)÷1= (5)=(6)÷3= (7)×= (8)= (9)= (10).
直接写出得数.100﹣63= 10.6﹣5.2= 150÷0.75=1.01×99= = =
口算.46+34= 72﹣28= 800×5= 5000+200=32×2= 96÷3= 80÷4= 7700﹣700=64÷2= 27+45= 85﹣78= 1400﹣600=+= ﹣= += ﹣=
直接写得数.25%×8=﹣=4.8÷0.8=12×(+)=
口算.24×75%= 5.2÷1.3= =×= 3÷= 3.1﹣0.3=0.92= 4.2+÷0.5= ==
直接写出计算结果.2.6×0.3= 43÷10%= 0.32﹣0.23= +=4﹣= ﹣= 1.3×7+6.7×7= ×5÷×5=