= ×
=
= ×22+3
=10+3
=13
① 24×()
②12+7.5×3.6÷7.2
③
④10.65-7.17-2.83+9.35
⑤
⑥
①( - ÷4)×
② ×99+
③2.7÷(1-20%-50%)
④(6.7×60%+3.3×60%)÷
⑤10×( - ÷37.5%)
①836-192÷8×16
②1.4÷(1.4+0.7)
③0.8×0.4×12.5×0.25
④ ÷6+ ÷20
⑤14×19×( + )
⑥ ÷[( + )÷ ]