(-81)div21/4*4/9*(-3)+|-21/2|+(-37)-|-27|-|-(+71/2)| eching

$$( - 81 ) \div 2 \frac { 1 } { 4 } \times \frac { 4 } { 9 } \times ( - 3 ) + | - 2 \frac { 1 } { 2 } | + ( - 37 ) - | - 27 | - | - ( + 7 \frac { 1 } { 2 } ) |$$

Baholash

$$-21$$

Yechim qadamlari

-81 ni \frac{2\times 4+1}{4} ga bo'lish -81 ga k'paytirish \frac{2\times 4+1}{4} ga qaytarish.

$$\frac{-81\times 4}{2\times 4+1}\times \frac{4}{9}\left(-3\right)+|-\frac{2\times 2+1}{2}|-37-|-27|-|-\frac{7\times 2+1}{2}|$$

-324 hosil qilish uchun -81 va 4 ni ko'paytirish.

$$\frac{-324}{2\times 4+1}\times \frac{4}{9}\left(-3\right)+|-\frac{2\times 2+1}{2}|-37-|-27|-|-\frac{7\times 2+1}{2}|$$

8 hosil qilish uchun 2 va 4 ni ko'paytirish.

$$\frac{-324}{8+1}\times \frac{4}{9}\left(-3\right)+|-\frac{2\times 2+1}{2}|-37-|-27|-|-\frac{7\times 2+1}{2}|$$

9 olish uchun 8 va 1'ni qo'shing.

$$\frac{-324}{9}\times \frac{4}{9}\left(-3\right)+|-\frac{2\times 2+1}{2}|-37-|-27|-|-\frac{7\times 2+1}{2}|$$

-36 ni olish uchun -324 ni 9 ga bo‘ling.

$$-36\times \frac{4}{9}\left(-3\right)+|-\frac{2\times 2+1}{2}|-37-|-27|-|-\frac{7\times 2+1}{2}|$$

-36\times \frac{4}{9} ni yagona kasrga aylantiring.

$$\frac{-36\times 4}{9}\left(-3\right)+|-\frac{2\times 2+1}{2}|-37-|-27|-|-\frac{7\times 2+1}{2}|$$

-144 hosil qilish uchun -36 va 4 ni ko'paytirish.

$$\frac{-144}{9}\left(-3\right)+|-\frac{2\times 2+1}{2}|-37-|-27|-|-\frac{7\times 2+1}{2}|$$

-16 ni olish uchun -144 ni 9 ga bo‘ling.

$$-16\left(-3\right)+|-\frac{2\times 2+1}{2}|-37-|-27|-|-\frac{7\times 2+1}{2}|$$

48 hosil qilish uchun -16 va -3 ni ko'paytirish.

$$48+|-\frac{2\times 2+1}{2}|-37-|-27|-|-\frac{7\times 2+1}{2}|$$

4 hosil qilish uchun 2 va 2 ni ko'paytirish.

$$48+|-\frac{4+1}{2}|-37-|-27|-|-\frac{7\times 2+1}{2}|$$

5 olish uchun 4 va 1'ni qo'shing.

$$48+|-\frac{5}{2}|-37-|-27|-|-\frac{7\times 2+1}{2}|$$

a haqiqiy sonining mutloq qiymati qachon a\geq 0 bo‘lganda, a yoki qachon a<0 bo‘lganda -a. -\frac{5}{2} ning mutloq qiymati \frac{5}{2} ga teng.

$$48+\frac{5}{2}-37-|-27|-|-\frac{7\times 2+1}{2}|$$

48 ni \frac{96}{2} kasrga o‘giring.

$$\frac{96}{2}+\frac{5}{2}-37-|-27|-|-\frac{7\times 2+1}{2}|$$

\frac{96}{2} va \frac{5}{2} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{96+5}{2}-37-|-27|-|-\frac{7\times 2+1}{2}|$$

101 olish uchun 96 va 5'ni qo'shing.

$$\frac{101}{2}-37-|-27|-|-\frac{7\times 2+1}{2}|$$

37 ni \frac{74}{2} kasrga o‘giring.

$$\frac{101}{2}-\frac{74}{2}-|-27|-|-\frac{7\times 2+1}{2}|$$

\frac{101}{2} va \frac{74}{2} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{101-74}{2}-|-27|-|-\frac{7\times 2+1}{2}|$$

27 olish uchun 101 dan 74 ni ayirish.

$$\frac{27}{2}-|-27|-|-\frac{7\times 2+1}{2}|$$

a haqiqiy sonining mutloq qiymati qachon a\geq 0 bo‘lganda, a yoki qachon a<0 bo‘lganda -a. -27 ning mutloq qiymati 27 ga teng.

$$\frac{27}{2}-27-|-\frac{7\times 2+1}{2}|$$

27 ni \frac{54}{2} kasrga o‘giring.

$$\frac{27}{2}-\frac{54}{2}-|-\frac{7\times 2+1}{2}|$$

\frac{27}{2} va \frac{54}{2} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{27-54}{2}-|-\frac{7\times 2+1}{2}|$$

-27 olish uchun 27 dan 54 ni ayirish.

$$-\frac{27}{2}-|-\frac{7\times 2+1}{2}|$$

14 hosil qilish uchun 7 va 2 ni ko'paytirish.

$$-\frac{27}{2}-|-\frac{14+1}{2}|$$

15 olish uchun 14 va 1'ni qo'shing.

$$-\frac{27}{2}-|-\frac{15}{2}|$$

a haqiqiy sonining mutloq qiymati qachon a\geq 0 bo‘lganda, a yoki qachon a<0 bo‘lganda -a. -\frac{15}{2} ning mutloq qiymati \frac{15}{2} ga teng.

$$-\frac{27}{2}-\frac{15}{2}$$

-\frac{27}{2} va \frac{15}{2} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{-27-15}{2}$$

-42 olish uchun -27 dan 15 ni ayirish.

$$\frac{-42}{2}$$

-21 ni olish uchun -42 ni 2 ga bo‘ling.

$$-21$$

Omil

$$-21$$