4*3*2+5*4*3+6*5*4+7*6*5+8*7*6+9*8*7+10*9*8 eching

$$4 \times 3 \times 2+5 \times 4 \times 3+6 \times 5 \times 4+7 \times 6 \times 5+8 \times 7 \times 6+9 \times 8 \times 7+10 \times 9 \times 8$$

Baholash

$$1974$$

Yechim qadamlari

12 hosil qilish uchun 4 va 3 ni ko'paytirish. 20 hosil qilish uchun 5 va 4 ni ko'paytirish. 30 hosil qilish uchun 6 va 5 ni ko'paytirish. 42 hosil qilish uchun 7 va 6 ni ko'paytirish. 56 hosil qilish uchun 8 va 7 ni ko'paytirish. 72 hosil qilish uchun 9 va 8 ni ko'paytirish. 90 hosil qilish uchun 10 va 9 ni ko'paytirish.

$$12\times 2+20\times 3+30\times 4+42\times 5+56\times 6+72\times 7+90\times 8$$

24 hosil qilish uchun 12 va 2 ni ko'paytirish.

$$24+20\times 3+30\times 4+42\times 5+56\times 6+72\times 7+90\times 8$$

60 hosil qilish uchun 20 va 3 ni ko'paytirish.

$$24+60+30\times 4+42\times 5+56\times 6+72\times 7+90\times 8$$

84 olish uchun 24 va 60'ni qo'shing.

$$84+30\times 4+42\times 5+56\times 6+72\times 7+90\times 8$$

120 hosil qilish uchun 30 va 4 ni ko'paytirish.

$$84+120+42\times 5+56\times 6+72\times 7+90\times 8$$

204 olish uchun 84 va 120'ni qo'shing.

$$204+42\times 5+56\times 6+72\times 7+90\times 8$$

210 hosil qilish uchun 42 va 5 ni ko'paytirish.

$$204+210+56\times 6+72\times 7+90\times 8$$

414 olish uchun 204 va 210'ni qo'shing.

$$414+56\times 6+72\times 7+90\times 8$$

336 hosil qilish uchun 56 va 6 ni ko'paytirish.

$$414+336+72\times 7+90\times 8$$

750 olish uchun 414 va 336'ni qo'shing.

$$750+72\times 7+90\times 8$$

504 hosil qilish uchun 72 va 7 ni ko'paytirish.

$$750+504+90\times 8$$

1254 olish uchun 750 va 504'ni qo'shing.

$$1254+90\times 8$$

720 hosil qilish uchun 90 va 8 ni ko'paytirish.

$$1254+720$$

1974 olish uchun 1254 va 720'ni qo'shing.

$$1974$$

Omil

$$2\times 3\times 7\times 47$$