①0.125×0.72×8
②36×( + )
③7.28﹣(1.28+0.25)
④(1﹣ )× ÷
⑤805×99+805
⑥718﹣18×4
1÷= = 1.1+0.11= 2.4×50%= 0.24÷0.8=
= 8×= 10﹣0.99= 0.22= 4×25%÷4×25%=
①0.53×2.5+
②25×0.032×12.5
③ [()×]
④6.83+17.9﹣0.83+32.1
① ÷ + ×33
② ﹣[( +0.5)÷ ]
③解比例:x: = :
①1.25×3.2×2.5
②×[0.75﹣()]
③×()
④2022×
⑤55×102+646÷38