Question

Efetue as operações


A)178+14−12=25/36


b) 125 . 103 . 24=



c) 1007∶549=



d) 43−1∶23=



e) 67+12−25 . 5=



f) 23+2.15∶12=




9) Calcule:



a) 52−1∶ 144=

b) 20+ 23 .3−12∶30+ 25=

c) 150−72+25− 32=

d) 121−100+5 .3+52=



Me ajudemmm ​

Answer 1

Efetue as operações:  

A) 178 + 14 − 12 = 25/36  -> 180 = 25/36 -> falso ???  

B) 125 * 103 * 24 =  3000 * 103 = 309000  

C) 1007 ∶ 549 = 1,83424  

D) 43 − 1 ∶ 23 = calcule o mmc = (989 -1) /23 = 988/23

 

E) 67 + 12 − 25 * 5 = 67 + 12 - 125 = 79 - 125 = -46

 

F) 23 + 2 * 15 ∶ 12 = 23 + 2,5 = 25,50

 

Calcule:

 

A) 52 − 1 ∶ 144 = calcule o mmc = (7488 - 1)/144 = 7487/144

B) 20 + 23 * 3 − 12 ∶ 30 + 25 = 20 + 69 - 0,4 + 25 = 114 - 0,4 = 113,6

C) 150 − 72 + 25 − 32 = 175 - 104 = 71

D) 121 − 100 + 5 * 3 + 52 = 121 - 100 + 15 + 52 = 21 + 67 = 88