a, \(=16,24\left(12-3+1\right)\)
\(=16,24.10=162,4\)
b, \(=1,25\left(1+2+7\right)\)
\(=1,25.10=12,5\)
c, \(=2,46\left(2+8\right)\)
\(=2,46.10=24,6\)
\(a,=16,24\times12-16,24\times3+16,24\times1\\ =16,24\times\left(12-3+1\right)=16,24\times10=162,4\\ b,=1,25\times\left(1+2+7\right)=1,25\times10=12,5\)
a 16.24( 12-10+3)=16.24 x 5=81.2
b 1.25(1+2+7)=1.25 x 10= 12.5
c 2.46 x 2 + 2.46 x8 = 2.46(2 + 8)=2.46 x 10=24.6
a) 16,24 x 12 – 1,624 x 10 x 3+ 16,24
=\(16,24\times\left(12-3+1\right)=16,24\times10=162,4\)
b) 1,25 + 1,25 x 2 + 7 x 1,25
=\(1,25\times\left(1+2+7\right)=1,25\times10=12,5\)
c) 2,46 : 0,5 + 2,46 x 8
=\(2,46\times2+2,46\times8=2,46\times\left(2+8\right)=2,46\times10=24,6\)
a) 16,24 x 12 – 1,624 x 10 x 3+ 16,24
= 194, 88 - 16, 24 x 19,24
= 194, 88 - 312,4576
= -117,5776
b) 1,25 + 1,25 x 2 + 7 x 1,25
= 1,25 + (1,25 x 2) + (7 x 1,25)
= 1,25 + 2, 5 + 8,75
= 3,75 + 8,75
= 12,5
c) 2,46 : 0,5 + 2,46 x 8
= 4,92 + 19,68
= 24,6
