Tính bằng cách thuận tiện nhất123x54+132x45+132
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132:0,125+132:0,25-132:0,2+132:0,5+132
= 132*8+132*4-132*5+132*2+132*1
= 132*(8+4-5+2+1)
= 132*10
= 1320
kb với mình nhé!
132 : 0,125 + 132 : 0,25 -132 : 0,2 + 132 : 0,5 +
=132 : 0,125 + 132 : 0,25 -132 : 0,2 + 132 : 0,5 + 132 . 1
=132(0,125+0,25-0,2+0,5+1)
=132.1,675
=221,1
\(123+132+213+312+321\)
\(=\left(123+312\right)+\left(213+132\right)+321\)
\(=435+345+321\)
\(=\left(435+345\right)+321\)
\(=780+321=1101\)
123+132+213+231+312+321
=(123+321)+(213+132)+321
=435+345+321
=(435+345)+321
=780+321
=1101
\(A=132\times53+132\times47\)
\(\Leftrightarrow A=132\left(53+47\right)\)
\(\Leftrightarrow A=132\times100\)
\(\Leftrightarrow A=13200\)
\(\text{Vậy }A=13200\)
\(B=204\times13-204\times3\)
\(\Leftrightarrow B=204\left(13-3\right)\)
\(\Leftrightarrow B=204\times10\)
\(\Leftrightarrow B=2040\)
\(\text{Vậy }B=2040\)
A) 132*53+132*47
=132*(53+47)
=132*100
=13200
B) 204*13-204*3
=204*(13-3)
=204*10
=2040
a) 744 x 24 + 628 x 48
=372 x2 x 24 + 628 x 48
= 48 x (372 + 628)
= 48 x 1000
= 48 000
b) 8 x 132 x 125
= 8 x 125 x132
= 1 000 x 132
= 132 000
a) \(\frac{28.36}{27.14}=\frac{7.4.9.2.2}{3.9.7.2}=\frac{4.2}{3}=2\)
b) \(\frac{132.45.8}{25.16.99}=\frac{2.2.3.11..3.3.5.2.2.2}{5.5.2.2.2.2.3.3.11}=\frac{2.3}{5}=\frac{6}{5}\)
\(\frac{1946\times1316+1000}{\left(1+131\right)\times1946-946}\)
\(\frac{1946\times131+1000}{1946\times131+1000}\)
\(=1\)
\(\frac{1946\times131+1000}{132\times1946-946}\)
\(=\frac{1946\times131+1000}{\left(131+1\right)\times1946-946}\)
\(=\frac{1946\times131+1000}{1946\times131+1946-946}\)
\(=\frac{1946\times131+1000}{1946\times131+1000}\)
\(=1\)
Học tốt
\(=21,37\cdot\left(27,5+72,4+0,1\right)=21,37\cdot100=2137\)
\(=21,37\cdot27.5+72.4+21.37+21.37\cdot0.1\)
\(=21.37\left(27.5+72.4+0.1\right)=21.37\cdot100=2137\)
123*54+132*45+132=123*54+(45+1)*132
=123*54+46*132
=123*54+46*(123+9)
=123*54+46*123+46*9
=123*(54+46)+414
=123*10+414
=1230+414
=1644