20,08+32,91+7,15=
Tính: 20,08 + 32,91 + 7,15
Tính: 20,08 + 32,91 + 7,15
20,08+32,91+7,15=........................................?
Bài 1:Tính
6,4+18,36+52=
20,08+32,91+7,15=
0,75+0,09+0,8=
6,4+18,36+52=76,76
20,08+32,91+7,15=60,14
0,75+0,09+0,8=1,64
a. 5,27 + 14,35 + 9,25; b.6,4 + 18,36 +52
c. 20,08 + 32,91 + 7,15; d.0,75 + 0,09 +0,8
A)=19,62+9,25
=28,87
B)=24,76+52
=76,76
C)52,99+7,15
=60,14
Đ)=0,84+0,8
=1,64
0,75+0,09+0,08
800,56-348,48
5,27+14,35+9,25
6,4+18,36+52
20,8+32,91+7,15
0,75+0,09+0,08=0,92
800,56-348,48=452,08
5,27+14,35+9,25=28,87
6,4+18,36+52=76,76
20,8+32,91+7,15=60,86
0,75+0,09+0,08=0,92
800,56-348,48=452,08
5,27+14,35+9,25=28,87
6,4+18,36+52=76,76
20,8+32,91+7,15=60,86
0,75+0,09+0,08=0,92(hoặc\(\frac{23}{25}\))
800,56-348,48=452,08(hoặc\(\frac{11302}{25}\))
5,27+14,35+9,25=28,87(hoặc\(\frac{2887}{100}\))
6.4+18.36+52=76,76(hoặc\(\frac{1919}{25}\))
20,8+32,91+7,15=60,86(hoặc\(\frac{3043}{50}\))
Chúc bn làm bài tốt nha!!!
7,15 : 0,5 + 7,15 x 9 – 7,15
=7.15x 2 + 7,15 x 9 - 7,15
7,15 : 0,25 + 7,15 : 0,5 + 7,15 x 5 -7,15
`[` Tham Khảo `]`
`7,15 : 0,25 + 7,15 : 0,5 + 7,15 xx 5 -7,15`
`= 7,15 xx 4 + 7,15 xx 2 + 7,15 xx 5 -7,15xx1`
`= 7,15 xx (4+2+5-1)`
`=7,15 xx 10`
`=71,5`
\(\text{ }^{\dfrac{\text{7.15}}{\text{0.25}}}\) + \(\dfrac{\text{7.15}}{0.5}\) + 7,15.5 -7,15
=>71,5
7,15:0,5+7,15×9-7,15
`7,15:0,5+7,15xx9-7,15`
`=7,15xx2+7,15xx9-7,15`
`=7,15xx(2+9-1)`
`=7,15xx10`
`=71,5`
\(7,15:0,5+7,15\times9-7,15\\ =7,15\times2+7,15\times9-7,15\\ =7,15\times\left(2+9-1\right)\\ =7,15\times10\\ =71,5\)
7,15:0,5+7,15×9−7,157,15:0,5+7,15×9-7,15
=7,15×2+7,15×9−7,15=7,15×2+7,15×9-7,15
=7,15×(2+9−1)=7,15×(2+9-1)
=7,15×10=7,15×10
=71,5
#luan nguyen