133:7+154:7+413:7
(42.43+43.57+43)-360:4
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1=???
2=(4x25)x37=100x37=3700
3=33750
4=28x(64+36)=28x100=2800
5=14386
6=810
7=(43x[42+57+1])-90=4300-90=4210
8=2772
a,4.37.25
=(4.25)+25
=100+25
=125
đó tui giải câu a thu
mấy câu khác dễ ợt
a) \(64\cdot25+35\cdot25+25=25\cdot\left(64+35+1\right)=2500\)
b) \(92\cdot42+32\cdot8+5\cdot16\)
\(=8\cdot21\cdot23+16\left(16+5\right)\)
\(=8\cdot21\cdot23+16\cdot21\)
\(=8\cdot21\cdot\left(23+2\right)\)
\(=8\cdot21\cdot25\)
\(=2\cdot21\cdot4\cdot25\)
\(=42\cdot100\)
\(=4200\)
c) \(\left(42\cdot43+43\cdot57+43\right)-360:4\)
\(=\left[43\cdot\left(42+57+1\right)\right]-360:4\)
\(=4300-90\)
\(=4210\)
a) (42 x 43 + 43 x 57 + 43) - 360 : 4
= 43 x ( 42 x 57) + 43 - 360 :4
= 43 x 99 + 43 - 90
= 4257 + 43 - 90
= 4300 - 90
= 4210
b) (372 - 194 x 4) + (981 : 9 - 13)
= (372 - 776) + (109 - 13)
= -404 + 96
= -308
c) 456 : 2 x 18 + 456 : 3 - 102
= 228 x 18 + 152 - 102
= 4104 + 152 - 102
= 4256 - 102
= 4154
133 : 7 + 154 : 7 + 413 : 7
= ( 133 + 154 + 413 ) : 7
= 700 : 7
= 100
a) (42 x 43 + 43 x 57 + 43) - 360 : 4
= 43 x ( 42 x 57) + 43 - 360 :4
= 43 x 99 + 43 - 90
= 4257 + 43 - 90
= 4300 - 90
= 4210
b) (372 - 194 x 4) + (981 : 9 - 13)
= (372 - 776) + (109 - 13)
= -404 + 96
= -308
c) 456 : 2 x 18 + 456 : 3 - 102
= 228 x 18 + 152 - 102
= 4104 + 152 - 102
= 4256 - 102
= 4154
=
a) (42.43+43.57+43)-360:4
=4300 - (360:4)
=4300- 90
=4210
b) (372 -194 .4 ) + ( 981 : 9 - 13 )
=712 + 69
=808
c) 456 : 2 . 18 + 456 : 3 - 102
= (456 : 2 . 18) + (456 : 3 - 102)
=4104+50
=4155
k nhak
\(325.6+6.650+115.6\)
\(=6.\left(325+650+115\right)\)
\(=6.1090\)
\(=6540\)
\(133:7+154:7+413:7\)
\(=\left(133+154+413\right):7\)
\(=700:7\)
\(=100\)
\(325.6+6.560+115.6\)
\(=6.\left(325+560+115\right)\)
\(=6.1000\)
\(=6000\)
\(133:7+154:7+413:7\)
\(=\left(133+154+413\right):7\)
\(=700:7\)
\(=100\)
a.58+42+32+58+72+42 b.133:7+154:7+413:7:4
=(58+42)+(58+42)+72+32 =133:7+154:7+413:4:7
=100+100+72+32 = 133:7+154:7+103,25 :7
=200+104 = (133+154+103,25):7
=304 = 390,25:7
= 55.75
a) 325 * 6 + 6 * 560 + 6 * 115
= 6 * ( 325 + 560 + 115 )
= 6 * 1000
= 6000
b) 133 : 7 + 154 : 7 + 413 : 7
= ( 137 + 154 + 413 ) : 7
= 504 : 7
= 72
133:7+154:7+413:7
= 19 + 22 + 59
= 100
(42.43+43.57+43)-360:4
= (42.43+43.57+43 . 1 )-360:4
= [ 43 . ( 42 + 57 + 1 ) - 360 : 4
= [ 43 . 100 ] - 360 : 4
= 4300 - 360 : 4
= 4300 - 90
= 4210
133:7+154:7+413:7
= ( 133 + 154 + 413 ) : 7
= 700 : 7
=100