=( )
×39=
① ﹣ ×
② + ×
③2.4× +2.4×
④( + )×54
⑤35×
⑥ × +0.25× ﹣
① ×25× ×19
② × ÷
③3+ ×13-
④18÷ ÷
⑤( - )×36
⑥ ÷( + + )
① × ×
② ÷ ×
③( - )×24
④ ×99+
⑤( + × )÷
⑥ ÷[ ×( + )]
①9.6× +10÷7+ ×1.4
②(5+ - )×
③534+880÷(704-688)
④ ×0.25
⑤2020×
⑥34.4÷0.01-1.25×25×32
⑦ ×[ -( -0.25)]÷
⑧[ ×( -0.15)+7.8]÷
⑨1.5×36+62×150%+2÷
⑩[17.1-17.1÷(3.1-1.2)]×0.6
①
②
③
④
⑤
2-0.99= 4÷ = 24×( + )= 0.42=
÷7= × = 4001+401= 560÷80=
① × +2
② - ×
③ ×34+ ×16
④ + ×
⑤( + )×36
⑥ × ×
①
②
③
④
⑤
①8.16-(6.3+1.16)
② ÷7+ ×
③ +
④896-672÷12
⑤32×0.125×25