Toán a) 16*4+16*2+16*3 b)19*1+19*4+19*4 giupp minh cho lm ny 09/07/2021 By Kinsley a) 16*4+16*2+16*3 b)19*1+19*4+19*4 giupp minh cho lm ny
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 Trả lời
`a)=16(4+2+3)`
`=16.9`
`=144`
`b)=19(1+4+4)`
`=19.9`
`=171`
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