Calculează şi compară expresiile:

a) 10 + ( 100 - 10): 10 3+( 300 - 30): 30

b)63 x 26 + 18:9+0x7 ( 36:9x8)+8:4 +8 960

c) 18 : [ 2 + ( 16 - 108:27):3] 1 428 - [(224 x 2) + ( 63 x 3)]

d) ( 950 : 25 ) - 130 : 2:5 + 150:5x20 (90 - 33 ): 19 + 19 x ( 70 - 61 )

e) ( 3 044 + 2 056 ): 17 +3 075 : 15 - 6 992:38 (760 : 19 + 25 ) x 13 - 120 : 3

f) [ 125:5-5x (2 444 : 13 - 44 400 : 240)]: 10 [( 130:5+1 132:2–7): (525 :5-96)).

1216:19

g) ( 100 + 100 : 100 ) x 100 - ( 100 + 100 x 100): 100 1000:10:2-500 x 2 : 100

h) 898 + 75: 3:5 + 7 996 x 0 D (42 + 32 x 5 )+ ( 100 - 16 x 2)

(i) (305 x 246 + 3 440 ) – 4 800 : 200 (123 649 + 120 351): 2 000 + ( 8 888:88 – 100)

) ( 7 350 : 35 + 124 569:9 – 124 x 56 –107) x 3 25 x 160 - 3 x 50) – 8

Scrie rezolvarea problemelor printr-o expresie numerică şi calculează:

4
.