THAM THẢO:
C1:
A = 26,54 × 27 – 26,54 × 17
= 712,8 - 451,18
= 70,62
C2:
= 26, 54 x (27 - 17)
= 26,57 x 10
= 265,7
C1:
B = 9,03 × 24 + 9,03 × 76
= 216,72 + 686,28
= 903
C2:
= 9,03 x ( 24 + 76)
= 9,03 x 100
= 903
C1:
C = 5,21 × 83 – 79 × 5,21 + 5,21 × 6
= 432,43 - 411,59 + 31,26
= 52,1
C2:
= 5,21 x ( 83 - 79 + 6 )
= 5,21 x 10
= 52, 1
C1:
D = 8,5 × 11 + 88 × 8,5 + 8,5
= 93,4 + 748 + 8,5
= 849,9
C2:
= 8,5 x (11 + 88 + 1)
= 8,5 x 100
= 850