a) 16*4+16*2+16*3
b)19*1+19*4+19*4
giupp minh cho lm ny
a) 16*4+16*2+16*3 b)19*1+19*4+19*4 giupp minh cho lm ny
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a) 16*4+16*2+16*3
b)19*1+19*4+19*4
giupp minh cho lm ny
Delwyn
`a)=16(4+2+3)`
`=16.9`
`=144`
`b)=19(1+4+4)`
`=19.9`
`=171`
Hưng Khoa
Đáp án:
16 x 4+16 x 2+16 x 3
= 16 x (4+2+3)
= 16 x 9
= 144
19 x 1+19 x 4+19 x 4
= 19 x (1+4+4)
= 19 x 9
= 171