①2x+3×0.9=24.7
②x+x=15
③=0.7:3.5
200-74=
32×75%=
=
0.52+0.5=
1.35+ 6.5=
12÷0.4=
① ②0.125×1.5×32 ③
④ ⑤ ⑥
4x-0.8=26.2 x+60%x=480 = 2.75:11