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48x25的简便计算
75x125-75
x25怎么
做?
答:
48
+16x-48=72-4816x=2416x÷16=24÷16x=1.5答:每件儿童衣服用布1.5米.5、在( )里填上适当的数,使每个方程的解都是x=8。(x-3)×(1.1)=5.5(3.5 )÷(15-x)=0.55x+3×(2.9)=48.7(5x+12)÷(2)=26参考答案:一、解方程并检验。x=12 x=7 x=2x=2 x=11 x=14.3二、1、 3x+12=842、40...
求解,
简便运算
,急,在线等
答:
4800000÷32÷25÷125 =4800000÷(4x8)÷25÷125 =4800000÷[(4
x25
)x(8x125)]=4800000÷(100x1000)=4800000÷100000 =
48
;3333x3+5555x5+6666x6 =1111x3x3+1111x5x5+1111x6x6 =1111x9+1111
x25
+1111x36 =1111x(9+25+36)=1111x70 =77770;1992x19931993-1993x19921992 =1992x1993x10001-...
63*73-63*63
简便算法
125*25*64 72*26+36*
48
答:
63*73-63*63 =63x(73-63)=63x10 =630 125
x25
x64 =125x25x8x4x2 =(125x8)x(25x4)x2 =1000x100x2 =200000 72x26+36x48 =36x2x26+36x48 =36x(52+
48
)=36x100 =3600
l36x24一72xl2怎样
简便
答:
136
x2
4-72x12 =136x24-36
x2
x12 =136x24-36x24 =(136-36)x24 =100x24 =2400
(44加4)乘25
简便运算
答:
(44+4)*25 =
48
*25 =40*25+8*25 =1200
63*73-63*63
简便算法
答:
63*73-63*63 =63x(73-63)=63x10 =630 125
x25
x64 =125x25x8x4x2 =(125x8)x(25x4)x2 =1000x100x2 =200000 72x26+36x48 =36x2x26+36x48 =36x(52+
48
)=36x100 =3600
棣栭〉
<涓婁竴椤
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