Toán Lớp 6: giúp mk với!!Mk hứa cho 5* !!
-Tính hợp lí:
d/ 1152 – (374+1152 ) + ( -65 + 374)
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Toán Lớp 6: giúp mk với!!Mk hứa cho 5* !!
-Tính hợp lí:
d/ 1152 – (374+1152 ) + ( -65 + 374)
Comments ( 2 )
1152 – (374 + 1152) + (-65 + 374)
= 1152 – 374 – 1152 – 65 + 374
= (1152 – 1152) + (-374 + 374) – 65
= 0 + 0 – 65
= -65
1152 – (374+1152 ) + ( -65 + 374)
=1152-374-1152-65+374
=(1152-1152)+(-374+374)-65
=0+0-65
=65