×÷15 ﹣+ ×+÷
++÷ ×÷(﹣) 25×3.2×125
(﹣+)×24 ÷(+)× 18÷(﹣)
32.6×33﹣32.6×23 ﹣÷3+ ×101﹣.
脱式计算.(能简算的要写出简算的主要过程)
12×(+﹣) 920÷40+23×99
×(4.85÷﹣3.6+6.15×3) ×[0.75﹣(+25%)].
(1)1125﹣997 (2)12﹣(1+2) (3)(﹣)×12
(4)4.35+4.25+3.65+3.75 (5)17﹣3﹣4 (6)22.3﹣2.45﹣5.3﹣4.55
(7)187.7×11﹣187.7 (8)998+1246 (9)400÷125÷8
(10)1×2× (11)34×(2+) (12)3.4×99+3.4
(13)÷2+× (14)(++)×72 (15)43×+57.125×﹣0.5
(16)4+3.2+5+6.8 (17)25×(37×8) (18)125×8.8
(19)17.15﹣8.47﹣1.53 (20)0.125×0.25×32 (21)4.25﹣3﹣(2﹣1)
(22)2.42÷+4.58×﹣4÷3.
计算下面各题,能简算的要简算.
(1)(+)×15 (2)×+× (3)××
(4)2.5×97×0.4 (5)1.25×97×8 (6)1.25×32×2.5×97
(7)0.36×101 (8)0.36×98 (9)﹣×
(10)+× (11)+× (12)﹣×
(13)90× (14)86× (15)×﹣×
(16)0.36×101﹣0.36 (17)0.36×99+0.36 (18)×﹣.
脱式计算,怎样算简便就怎样算
①600﹣480÷12
②9×÷
③(80﹣9.8)×0.6﹣2.12
④35×(1﹣)÷
⑤3÷[×(﹣)]
⑥(1﹣)×(+)
299×101 2+3﹣3+1+1
24.6×4.6+246×0.44+24.6 ×27+16×
9900÷25÷4 ×98+×2
11﹣﹣(×+×) +4﹣(+)
1999+999×999 20.07×1994﹣19.93×2007
0.125×32×2.5 2002×
12﹣2×3÷2 0.65×6.4﹣6.5×0.54+65×9%
9999+999+99+9+4 ×98+2÷
×8+×3﹣ 35×+35×+35×
2.25×1.8+17.5×0.18 (++)÷.
试题篮
()