5.2×60=
0.6-0.47=
3×0.45+0.45=
8×2.79×1.25=
3-0.17-0.83+4.17=
7.2×4.8÷7.2×5=
①5.87×11-5.87
②1.25×6.05×80
③20.9+10.5÷(5.5-4.8)
①x-3.4=2.42
②12.8÷x=1.6
③9x-7x=3.8
④23.6-x=9.15
⑤1+0.25x=1.68
⑥0.3x+4×0.8=3.83