能简算的要简算498又498/499÷498
能简算的要简算。 -
能简算的必须要简算,这是常识。比如:98×25×4 =98×(25×4)=98×100 =9800 希望能帮助到你,请采纳谢谢!
9/50×87+12×9/50+9/50 =9/50×(87+12+1)9/50×100 =18 5/6×4-(7/8+2/3)10/3-7/8-2/3 =8/3-7/8 =43/24 (7/8+13/16)÷13/16 =7/8÷13/16+13/16÷13/16 =14/13+1 =27/13 1/12-1/4×4/5-1/8 =1/12-1/5-1/8 =-29/120 有帮助请点赞。
能简算的必须要简算,这是常识。比如:98×25×4 =98×(25×4)=98×100 =9800 希望能帮助到你,请采纳谢谢!
9/50×87+12×9/50+9/50 =9/50×(87+12+1)9/50×100 =18 5/6×4-(7/8+2/3)10/3-7/8-2/3 =8/3-7/8 =43/24 (7/8+13/16)÷13/16 =7/8÷13/16+13/16÷13/16 =14/13+1 =27/13 1/12-1/4×4/5-1/8 =1/12-1/5-1/8 =-29/120 有帮助请点赞。
十七分之五-(八分之七-十七分之十二=5/17+12/17-7/8 =1-7/8 =1/8 五分之三+九分之二+五分之一÷二分之一=3/5+2/9+2/5 =(3/5+2/5)+2/9 =1+2/9 =1又2/9 五分之一×九分之二+九分之七÷五=1/5×2/9+7/9×1/5 =1/5×(2/9+7/9)=1/5×1 =1/等会说。
=32/45×9/80+1/4 =2/25+1/4 =33/100 2又1/2+0.309÷【1/20×(2.31÷0.077)】2.526 =2.5+0.309÷(1/20×30)-2.526 =2.5+0.309×2/3-2.526 =2.5+0.206-2.526 =0.18 (1+1/5)×【82÷(2又1/2-7/3)+11】×(1/5-1/6)=6/5×(82÷1/6+11)后面会介绍。
简算498*498-499*497 1-2+3-4+5.+101 要有式子 -
498*498-499*497 =498*498-(498+1)(498-1)=498*498-(498*498-1)=1 1-2+3-4+5.+101 =(1-2)+(3-4)+……(99-100)+101 =-50+101 =51
=5/7*5/13+2/7*5/13 =(5/7+2/7)5/13 =1*5/13 =5/13 2-9/34÷6/17-1/4 =2-9/34*17/6-1/4 =2-3/4-1/4 =2-(3/4+1/4)=2-1 =1 5*(1/20+2/15)2/3 =5*1/20+5*2/15-2/3 =1/4+2/3-1/3 =1/4+(2/3-1/3)=1/4+1/3 还有呢?
脱式计算能简算的要简算 -
(382X26分之7+0.618X26分之7)X3又7分之5 =(382*7/26+0.618*7/26)26/7 =382+0.618 =382.618 5分之4+25分之3X21分之5+5分之3X2 =4/5+3/25*5/21+3/5*2 =4/5+1/35+6/5 =28/35+1/35+42/35 =71/35 333X332332332-332X333333333 =333X333333333-333*1001001-有帮助请点赞。
=9/8÷(0.25+0.5)=9/8x100/75 =3/2 ③14分之13×【(2分之1+5分之1)÷(4分之1-5分之1)】13/14x7/10x20 =13 ④999×1004-999×3-999 =999(1004-3-1)=999000 ⑤ 由AB/DE=AF/DF,AB/(AB+DE)=AF/AD,得4/10=AF/4,所以AF=1.6,所以阴影部分的面积=(1/2)*AB*希望你能满意。
计算。(能简算的要简算) -
(2)3又11分之3÷1又4分之3÷3又11分之3=36/11÷7/4÷36/11=36/11×4/7×11/36=4/7 (3)125÷125×8-8+0÷1=8-8=0 (4)8又5分之4乘8又9分之7+1又9分之2乘8.8+1又5分之1乘10 =44/5×79/9+11/9×8.8+6/5×10 =44/9(79/5+11/5)+12 =44/9×90/好了吧!
第一15×21分之4+7分之8÷16 =20/7+1/14 =41/14 第二9.9×2.49×0.249 =(9.9+0.1)*2.49 =10*2.49 =24.9 第三11分之2×75%+4分之1+11分之9÷3分之4 =(2/11+9/11)*3/4+1/4 =3/4+1/4 =1 第四【(3分之4-4分之3)÷3分之7+3分之2】×11分之还有呢?