Question

A.-25 - (-32) : 8 × 12 + 42 =
B.-24 : (-6) + 7 × 2=
C.0,25 - 15% × (-1,25) =
D.0,245 × (-2,1) + 1,275 =

Tolong di jawab yah Kaka Kaka yang baik jangan lupa pake caranya terimakasih

Answer 1

A. - 25 - ( - 32 ) : 8 x 12 + 42

= - 25 + ( 32 : 8 ) x 12 + 42

= -25 + ( 4 x 12 ) + 42

= - 25 + 48 + 42

= 23 + 42

= 65


_____________

B. - 24 : ( - 6 ) + 7 x 2

= ( 24 : 6 ) + 7 x 2

= 4 + ( 7 x 2 )

= 4 + 14

= 18

______________

C. 0,25 - 15% x ( -1,25 )

= 25/10 - 15/100 x - 125/100

= 25/10 - 1875/10000

= 25000/10000 - 1875/10000

= 23125/10000

= 2 3125/10000 ➡ 2 25/80 ( sama sama dibagi 125 )

______________

D. 0,245 x ( - 2,1 ) + 1,275

= 245/1000 x ( - 21/10 ) + 1275/1000

= - 5145 /10000 + 1275/1000

= -5145/10000+ 12750/10000

= 7605/10000

= 1521/2000 ( sama sama dibagi 5 )