Tolong banget nih, PR matematika mendadak, :( jawabnya pakai cara/ jalannya biar tau ya..
nabilahfebrinaw
Pertama kamu bagi dulu abis itu di kali setelah ketemu hasil dari pembagian dan perkalian : 45+hasil perkalian - hasil pembagian. Begitupun seterusnya
=45 + ( 56 x 48) - ( 216 : 9)
= 45 + 2688 - 24
= 2709
2. 15.762 : 37 - 512 + 96 x 72
= ( 15.762 : 37) - 512 + ( 96 x 72)
= 426 - 512 + 6912
= 6826
3. (19 x 27) + ( 5205 :15) -269
= 513 + 347 - 269
= 591
4. (-9) -( 6 x (-72)) : 16 - 20
= -9 -(- 432) : (-4)
= - 9 + 432 : (-4)
= - 9 + ( 432 : -4)
= -9 - 108
= - 117
5. (8742 - 9756 ) x 36 : ( 4356 - 4360)
= (- 1014 ) x 36 : (- 4)
= - 1014 x ( 36 : - 4)
= - 1014 x -9
= 9126
6. 168 : { ( 17 - 24) x (-19 + 15 )}
= 168 : { (- 7) x (-4)}
= 168 : 28
= 6
7. 24 x {240 : ((- 36 + 40) x (-23 + 17) )}
= 24 x { 240 : ( 4)x (-6)}
= 24 x ( 240 : - 24 )
= 24 x - 10
= - 240
8. 360 : ( 15 + ((27 -32) x (-9 + 16)))
= 360 : ( 15 + (-5) x (7))
= 360 : ( 15 +(-35))
= 360 : ( - 20)
= -18
9. 420 : (-7) + 70 - 30 x (-8) + 15
= ( 420 : (-7)) + 70 - ( 30 x (-8)) + 15
= - 60 + 70 - ( -240) + 15
= 10 + 240 + 15
= 265
10. 13 x ( 140 : (- 7)) + (-2) x 19
= (13 x (- 20) ) + ( -2 x 19)
= - 260 + (- 38)
= - 260 - 38
= - 298
mohon dikoreksi kembali...
maaf kalau ada yg salah