34x24+67x24-24简便计算
34x24 67x24-24简便运算 -
=34x24-67x24-24 =(34+67-1)x24 =(101-1)x24 =100x24 =2400
34×24+67×24-24 =（34+67-1）×24 =100×24 =2400
=34x24-67x24-24 =(34+67-1)x24 =(101-1)x24 =100x24 =2400
34×24+67×24-24 =（34+67-1）×24 =100×24 =2400
其实就是运用乘法分配律而已。如下图：
＝（7+26+67）24 ＝100*24 ＝2400
1-x÷5/7=21/25怎么算 -
（5/6-5/12+3/8）÷1/24 6/7x4/21+6/7÷21/17 （35+7/8）x1/7 （5/6-5/12+3/8）÷1/24 =（5/6-5/12+3/8)x24 =5x4-5x2+3x3 =20-10+9 =19 6/7x4/21+6/7÷21/17 =6/7x4/21+6/7x17/21=6/7x(4/21+17/21)=6/7x1=6/7 （35+7/8）x还有呢？
0.4×125×25×0.8 =（0.4×25）×（125×0.8)=10×100=1000 1.25×（8+10）1.25×8+1.25×10 =10+12.5=22.5 9123-（123+8.8）9123-123-8.8 =9000-8.8 =8991.2 1.24×8.3+8.3×1.76 =8.3×（1.24+1.76)=8.3×3=24.9 9999×1001 =9999×（1000+1等会说。
797x24+72怎么:简便运算? -
简便计算过程如下797×24+72 ＝797×24+3×24 ＝（797+3）×24 ＝800×24 ＝19200 望采纳，
(24)343/7= (25)230x40= (26）120X24= (27)1.2×2.5+0.8×2.5 = (28)8.9×1.25-0.9×1.25 = (29)12.5×7.4×0.8 = (30)9.9×6.4-（2.5+0.24） (31)6.5×9.5+6.5×0.5 = (32)0.35×1.6+0.35×3.4 = (33)0.25×8.6×4 = (34)6.72-到此结束了？。
计算。谢谢,不要光写得数,要做出来,急急急!!! -
=3/8÷1/4 =3/2 =1又1/2 (2)38分之5÷19分之15＋4分之3×6分之5 =1/6+5/8 =19/24 (3)(12分之7＋8分之3－6分之5)÷24分之1 =1/8÷1/24 =3 或者简便计算：12分之7＋8分之3－6分之5)÷24分之1 =(12分之7＋8分之3－6分之5)×24 =7/12×24+3/8×24-还有呢？
40道分数简便计算：1/3x(5x3/2)35/2x5 30x1/2+30x2 4/9+5/9 12/13+12/13+12/13 5/8+5/12+3/8+7/12 1-3/7-4/7 3/8x(1/4x8/9)x4 46x1/4+55x1/4-1/4 (1/4+1/6+1/12+1/8)x24 1/3x4^2/5÷4^2/5÷1/3 1/4x125x32 1/3x3/25+1/3x22/25 3^4/5x是什么。