`36/10 = 3,6`
`409/100 = 4,09`
`127/10 = 12,7`
`30/10 = 3`
`976/100 = 9,76`
`87/100=0,87`
`x:7=86321`
`x=86321 xx7`
`x=604247`
____________________
`9x = 81729`
`x=81729:9`
`x=9081`
`1`.
`a) =3,6`
`b) =4,09`
`c) =12,7`
`d) =3`
`e) =9,76`
`g) =0,87`
`2`.
`a) => x=86321xx7=604247`
`b) => x=81729:9=9081`
Câu 1:
a.\(\dfrac{36}{10}=3,6\)
b.\(\dfrac{409}{100}=4,09\)
c.\(\dfrac{127}{10}=12,7\)
d.\(\dfrac{30}{10}=3\)
e.\(\dfrac{976}{100}=9,76\)
g.\(\dfrac{87}{100}=0,87\)
Câu 2:
a.x:7=86321
x=86321\(\times\)7
x=604247
b.9\(\times\)x=81729
x=81729:9
x=9081
câu `1`
`a, 36/10=3,6`
`b. 409/100= 4,09`
` c. 127/10=12,7`
`d. 30/10= 3`
`e. 976/100= 9,76`
`g. 87/100=0,87`
Câu `2`
`x : 7= 86321 `
`=>x= 86321 xx 7 `
`=>x= 604274`
`b.9 xx x= 81729`
`=>x=81729 : 9`
`=>x=9081`
`