2.4×5= 0.22×5= 1-0.85= 2.3×4.1+5.7=
22.6-3.4-2.6= 12÷0.01 = 0÷0.42= 2.4a+6a=
0.85+0.25= 0.1×0.1+0.1×0.1=
1×0.9 1 0.1×5.60.56 7.66÷0.99 7.66 3.25×1.23.25 6.71÷0.58 6.71 5.6×0.95.6÷0.9
①
②36×()
③
④
⑤3.24×0.76+3.24×0.24
⑥