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\(123,45:0,5+123,45+0,2+123\times3\)
\(=123,45\times2+123,45\times5+123,45\times3\)
\(=123,45\times\left(2+5+3\right)\)
\(=123,45\times10\)
\(=1234,5\)
123,45:0,5+123,45:0,2+123x3
=123,45:\(\frac{1}{2}\)+123,45:\(\frac{1}{5}\)+123x3
=123,45 x 2+123,45 x 5 +123x3
=123,45x(2+5) +123x3
=123,45x7+123x3
=123x7 +0,45x7 +123x3
=123x(7+3)+0,45x7
=123x10+0,45x7
=1230+ 3,15
=1233,15
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123,45 km = 12345 dam
6,27 m2 = 0,0627 dam2
12,45 yến = 0,1245 tấn
4,68 km2 = 4680000 m2
123,45 km = 12345 dam
6,27 m2 = 0,0627 dam2
12,45 yến = 0,1245 tấn
4,68 km2 = 4680000 m2
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1 + (986 + 269) x ( 12,56 x 4) = 1 + 1255 x 0.1256
= 1 + 157.628
= 158,628
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= 0.1252028397565923 nha!