①
②
③
④
÷= ×= 4÷= 1.2×=
÷0.5= 4.9×= 1.2×= 1÷×
① × ×
② + × +
③( + )×1.8
④ ÷8- ×
⑤(0.75- )÷( + )
⑥26×
>>>>>
÷= ×= 1.02﹣0.43= 597×8≈
126÷3= 0.25×0.8= 1÷25%= 725÷92≈