2.4×0.3= 8.2÷0.01= 4a+a= 12.6-7.6+0.4= 3.6+0.04= 1.1-0.11= 7a×a= 1.25×8÷1.25×8=
0.63=
4÷6=
4.56+4.44= 0.36÷0.6= 43= 1.25×5×8=
0.2×5÷0.2×5= 3-1.48= 12÷0.4= 4×0.25=
+= += -= = 0.25+=
2﹣= = = = ﹣0.6=
⑴1.9+0.05= ⑷7x﹣x= ⑺[2,15]= ⑽>( )
⑵5.8×2= ⑸6a+15a= ⑻[5,35]= ⑾>( )
⑶1.21÷1.1= ⑹(18,20)= ⑼[9,12]= ⑿<( )
15×60= 640÷40= ÷ = 398÷202≈ 6.9÷0.1=
1.05-0.65= 0.8×125%= 5- = ÷6= 910-430=