文档介绍：(- )×60 (+ )×18 ( - )×
(+ )× 5 (+)×27 6 ×(+)
(- )× ×(+) (+)× 25
( + )× (- )×20 ( - )×18
12×(+ + ) ×(+ ) (+ )×35
×+× ×+ × ×+ ×
×+× ×- × ×6 +× 6
×+ × ×+× ×+×
×-× ×-× ×+×
×+× ×7+×5 21×+×21
×101 × 78 ×28
36× 21× 37×
× 24 34× ×12
×26 × 30 × 27
4×10 25×8 3×
(+ )×7 ×5 (- )×5 × 12 ( - )×6×18
( + )×7×9 (+ )× 5×4 (+)×27×3
(+ )× 20× 8 3×12×(- ) (+4 )× 25
( + )×24 (- )×6×10 ( - )×18×2
6 ×5×(+) 30×(+) ( - )×60
×101- × 99 + ×101-
12×+ ×7+ ×99+
14×- ×11- ×19+
×13+ ×20+ 12×+
17×+ ×19+ 23×+
××5 ××3 ×5×18
×× ×16× ××14
× 4 × 6 ×(×) ×(125 × 34)
××27 × × × ×
×× 5×× ××6
×(7 - ) (+ )× 25 1- ×
+ × ×(5 - ) ×+
- × 1-× +(×)
×6+ ×+ ×+
×+×+ ×+÷ 88×(-)
÷3+× +×+ +-
-+÷ +× ÷[(-)×]
÷[×(+)] -×(÷) (-)×÷
(+)×(-) ×+÷7 [1-(+)]÷
8—48×(+) 8×(+)×6 (+)×6×8
×4-(+) ×+÷ ×÷-
(-)÷ ÷(-) ÷+×
8-- 99× 4