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\(80-\left(4.5^2.3.2^2\right)\)
\(=80-\left(4.5.5.3.2.2\right)\)
\(=80-\left(\left[5.2\right].\left[5.2\right].\left[4.3\right]\right)\)
\(=80-\left(10.10.12\right)\)
\(=80-\left(10.120\right)\)
\(=80-1200\)
\(=-1120\)
80-[4.5^2 .3.2^2 ]
=80-[4.25.3.4]
=80-[100.12]
=80-1200=-1120
8. (-1,6) x (-0,125) x (-0,5)
= 8 . [(-1,6) x (-0,125) x (-0,5)]
= 8 . (-0,1)
= -0,8
a) \(17+188+183=205+183=388\)
b) \(80-\left[130-\left(12-4\right)^2\right]\)
\(=80-\left(130-64\right)\)
\(80-66=14\)
c) \(2^3.17-2^3.14\)
\(8.17-8.14\)
\(=8.\left(17-14\right)\)
\(=8.3=24\)
5.42 - 18 : 32 . 22+2.115 = 5 .24 - 2.32:32.22+2
= 5 . 24 - 23 + 2
= 5 . 10 = 50
80- (4.52-3.23) = 24 . 5 - 22 .52 + 3 .23
= 22 ( 22 .5-5+ 3.2)
= 4 . 21 = 84
a) B = 5/16 : 0,125 - ( 9/4 - 0,6 ) * 10/11
B = 5/16 * 8 - 9/4 * 10/11 + 0,6 * 10/11
B = 5/2 - 45/22 + 3/11
B = 55/22 - 45/22 + 6/22
B = 8/11
b) \(\left(\frac{1}{2}+1\right)\left(\frac{1}{3}+1\right).....\left(\frac{1}{99}+1\right)\)
\(=\frac{3}{2}.\frac{4}{3}.\frac{5}{4}.....\frac{100}{99}\)
\(=\frac{3.4.5.....100}{2.3.4.....99}\)
\(=\frac{\left(3.4.....99\right).100}{2\left(3.4.....99\right)}\)
\(=\frac{100}{2}\)
\(=50\)
a)B= 5/6 : 1/8 - (9/4 - 3/5 ) * 10/11
= 5/2 - 33/20 * 10/11
= 5/2 - 3/2
= 1
b) 3/2.4/3.5/4....100/99
= 3.4.5...100/2.3.4...99
=100/2
=50
\(0,125\cdot0,694\cdot80\)
\(=\left(0,125\cdot80\right)\cdot0,694\)
\(=\left(\dfrac{1}{8}\cdot80\right)\cdot0,694\)
\(=10\cdot0,694=6,94\)
0,125 . 0,694 . 80
=( 0,125 .80) .0,694
= 10 . 0,694
= 6,94