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sao ra toàn bài khó hông zợ
nếu không được thì đánh lên google cho nhanh
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\(13,25:0,5+13,25:0,25+13,25:0,125\)
\(=13,25:\left(0,5+0,25+0,125\right)\)
\(=13,25:0,875\)
\(\approx15,15\)
13,25:0,5+13,25:0,25+13,25+0,125
=13,25:(0,5+0,25+0,125)
=13,25:0,875
=15,1428571
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3,42 : 0,2 + 3,42 : 0,5 + 3,42 : 0,25 - 3,42
=3,42 : \(\frac{1}{5}\) + 3,42 : \(\frac{1}{2}\) + 3,42 : \(\frac{1}{4}\) - 3,42
=3,42 x 5 + 3,42 x 2 + 3,42 x 4 - 3,42
=3,42 x (5+2+4-1)
=3,42 x 10
=34,2
Học tốt
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13,25 : 0,5 + 13,25 : 0,2 + 13,25 : 0,25
=13,25 x 2 + 13,25 x 5 + 13,25 x 4
= 13,25 x ( 2+5+4)
=13,25 x 11
=145,75
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\(13,25:0,5+13,25:0,2+13,25:0,25\\ =13,25\times2+13,25\times5+13,25\times4\\ =13,25\times\left(2+5+4\right)\\ =13,25\times11\\ =145,75\)
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13,25 : 0,5 + 13,25 : 0,2 + 13,25 : 0,25
= 13,25 \(\times\) 2 + 13,25 \(\times\) 5 + 13,25 \(\times\) 4
= 13,25 \(\times\) 2 + 13,25 \(\times\) 5 + 13,25 \(\times\) 3 + 13,25
= 13,25 \(\times\) ( 2 + 5 + 3) + 13,25
= 13,25 x 10 + 13,25
= 132,5 + 13,25
= 145,75
161/5 hay 32.2
3,22 : 0,2 + 3,22 : 0,25 + 3,22
= 3,22 .5 + 3,22 .4 + 3,22.1
=3,22.(5+4+1)
=3,22.10
=32,2