5x5-6+8=?
8x4x1=?
1+2x5+6x5-8-8x69-969+5x5+6+4+4+4-5x6
TÍNH NHANH:1+1x2+2+2x3+6x8+5x5+9x2-3-8-1-1-3-4+6-8+5-7+6+56x10+23x10+135x100+234x100+1005x1000+10000x10000=?
tính khùng lun á bạn
Tính: A) 7/4:11/9+5/4:11/9, B) 28/5:4/5x5/8, C) 2/3x3/6+4/5:5/6-2/5
a: =9/11(7/4+5/4)=9/11x3=27/11
b: \(=\dfrac{28}{5}\cdot\dfrac{5}{8}\cdot\dfrac{5}{4}=\dfrac{28}{8}\cdot\dfrac{5}{4}=\dfrac{140}{32}=\dfrac{35}{8}\)
c: \(=\dfrac{2}{6}+\dfrac{4}{5}\cdot\dfrac{6}{5}-\dfrac{2}{5}=\dfrac{67}{75}\)
a,=(7/4+5/4):11/9
=3:11/9
=27/11
b,=28/5.5/4.5/8
=7.5/8
=35/8
c,=1/3+24/25-2/5
=97/75-2/5
=67/75
7/4:11/9+5/4:11/9
=7/4×9/11+5/4×9/11
=9/11×(7/4+5/4)
=9/11×12/4
=9/11×3
=27/11
b)
28/5:4/5×5/8
=28/5×5/4×5/8
=28/4×5/8
=7×5/8
=35/8
c)
2/3×3/6+4/5:5/6−2/5
=2/6+4/5×6/5−2/5
=1/3+24/25−2/5
=(24/25−2/5)+1/3
=14/25+1/3
=67/75
tính :
a) 197148:84=
101598:287=
b)9/20-8/5x5/12=
2/3:4/5:7/12=
4/9+11/8-5/6=
a) 197148:84=2347
101598:287=354
b)9/20-8/5x5/12= -13/60
2/3:4/5:7/12=10/7
4/9+11/8-5/6=71/72
tính :
a) 197148:84=2347
101598:287=354
b)9/20-8/5x5/12= -13/60
2/3:4/5:7/12=10/7
=4/9+11/8-5/6=71/72
nhầm cau 1 phần b là 9/20-8/15x5/12=
5x5+6=?
25+6=?
5x5+6=25+6=31
25+6=31
ai k mình mình k lại nha
(1/5)^5x5^5+8^13/4^18
\(\left(\dfrac{1}{5}\right)^5\cdot5^5+\dfrac{8^{13}}{4^{18}}\)
\(=1+\dfrac{2^{39}}{2^{36}}\)
=9
A . 2/5x3/7 4/9x3/10 4/7x3/4 2x5/8
B . 3/8:7/5 3/4:9/10 7/8:2 6:2/3
C . 1/3x3/5x5/9 15/16:3/8x3/4
5x5+15=?
6x7+8=?
7x8+15=?
Ai làm nhanh tick nha!!
5 x 5 + 15
= 25 + 15
= 40
6 x 7 + 8
= 42 + 8
= 50
7 x 8 + 15
= 56 + 15
= 71
5 x 5 +15 = 25 + 15 = 40.
6 x 7 + 8 = 42 + 8 = 50.
7 x 8 + 15 = 56 + 15 = 71.
5x5:5-5+5+6:0 bằng bao nhiêu