题目内容
3.7-2.4= 8.4÷0.7= 30×1.2= 0.15×3= 38×0.3=
24-2.4= 6.16-1.06= 54+128= 31.8÷3= 21.7÷0.7=
(1)30÷6= (2)20-9= (3)3×9=
(4)9×5= (5)54+8= (6)91-7=
(7)100÷10=
(10)82-8= (11)4×8=
用竖式计算.
7.8-2.4= 4.3+0.2= 2.1+7.6= 18.5-3.5=
口算.
15-2×4= 3×6+5= 7×8+0=