1.5×102 5.5×17.3+2.7×5.5
4.8×99+4.8 15.8÷2.5÷4
3×1.2= 0.8×1.25= 0×8.4= 30×4.2=
0.06×8= 0.83×0.4= 2.4×0.5= 0.93×0.5=
10.7×0.45=
80.5÷0.25=
*7.8÷3.5≈
①
②
③
④
1.6×2.5×0.4
9.5×101
3.65×2.8+3.65×7.2
0.99+0.1= 0.35× = 0.75÷75%= 3.14×82=
2.7- = ÷8= 15×6÷15×6= ÷ ×0=