Question

[hà chi]

A, 65, 46 x 1,2 + 33,54 x 1,2 + 1,2
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B, (1 /4- 0,5 x 0,5) : ( 8,1 + 9,1 + 10,1 +..................+ 20,1)
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Answer 1

[✰๖ۣۜNσNαмε๖ۣۜ✰]

A) 65,46 x 1,2 + 33,54 x 1,2 + 1,2

=  1,2 x ( 65, 46 + 33,54 + 1 )

= 1,2 x 100

= 120

Answer 2

[Nguyễn]

65, 46 x 1,2 + 33,54 x 1,2 + 1,2

=65, 46 x 1,2 + 33,54 x 1,2 + 1,2 ×1 

= 1,2 ×(65,46+33,54+1)

=1,2×100=120