58 - 12 - 25 = ?
12+12+32.15+58+25
số đó là
923
ai k mình
mình k lại cho
không hề nói dối
12 + 12 + 32 .15 + 58 + 25
= 587
k mk nha pạn
cảm ơn trước
Tính
a , 4 5 × 5 8 = b , 1 2 : 2 5 =
a) 65. 48 + 35 . 48 + 12 . 58 - 12 . 38
b) 20180 + { 152 : [ 175 - ( 23 . 52 - 6 . 25 ) ] }
a: \(65\cdot48+35\cdot48+12\cdot58-12\cdot38\)
\(=48\left(65+35\right)+12\left(58-38\right)\)
\(=48\cdot100+12\cdot20\)
\(=4800+240=5040\)
b: \(2018^2+\left\{15^2:\left[175-\left(2^3\cdot5^2-6\cdot25\right)\right]\right\}\)
\(=1+\left\{\dfrac{225}{175-\left(8\cdot25-150\right)}\right\}\)
\(=1+\dfrac{225}{175-\left(200-150\right)}\)
\(=1+\dfrac{225}{175-50}=1+\dfrac{225}{125}=1+\dfrac{5}{3}=\dfrac{8}{3}\)
12 x 25 x 35 x 56 58
12 x 25 x 35 x 5658 = 300 x 35 x 5658
= 10500 x 5658
= 59409000
Mik đàu tiên đấy , click cho mik nha !!!!!!!!!!!!!!!!!!
1) 58× 75+ 58× 50 -58 × 25
2) 2và 3/5 - 3/5 × ( 5/8- 7/12)
3) 1/3 - 5/4 × 4/15
1) 58× 75+ 58× 50 -58 × 25
= 58( 75 + 50 - 25 )
= 58 . 100
= 5800
1/ 58 x 75 + 58 x 50 - 58 x 25
= 58 x ( 75 + 50 - 25 )
= 58 x 100
= 5800
2/= \(2\frac{3}{5}-\frac{3}{5}\cdot\frac{11}{84}\)
\(=\frac{13}{5}-\frac{3}{5}\cdot\frac{11}{84}\)
\(=\frac{13}{5}-\frac{11}{140}\)
\(=\frac{364-11}{140}\)
\(=\frac{353}{140}\)
3/ \(\frac{1}{3}-\frac{5}{4}\cdot\frac{4}{15}\)
\(=\frac{1}{3}-\frac{1}{3}\)
\(=0\)
Tính
a , 7 15 + 4 5 = b , 4 5 × 5 8 = c , 2 3 - 3 8 d , 1 2 : 2 5 =
Tính
a , 7 15 + 4 5 = b , 4 5 × 5 8 = c , 2 3 - 3 8 = d , 1 2 : 2 5 =
Tính
a , 7 15 + 4 5 = b , 4 5 × 5 8 = c , 2 3 - 3 8 = d , 1 2 : 2 5 =
Tính
a , 7 15 + 4 5 = b , 4 5 × 5 8 = c , 2 3 - 3 8 = d , 1 2 : 2 5 =