\[\boxed{\ \mathbf{429\ (429)}.\ Еуроки\ - \ ДЗ\ без\ мороки}\]
Пояснение.
Решение.
\[1)\ 13b + 19b = b(13 + 19) =\]
\[= 32b\]
\[2)\ 44d - 37d = d(44 - 37) =\]
\[= 7d\]
\[3)\ 34n + n = n(34 + 1) = 35n\]
\[4)\ 127q - q = q(127 - 1) =\]
\[= 126q\]
\[5)\ 36y - 19y + 23y =\]
\[= y(36 - 19 + 23) = 40y\]
\[6)\ 49a + 21a + 30 =\]
\[= a(49 + 21) + 30 = 70a + 30\]
\[\boxed{\mathbf{429}\mathbf{\ (392)}.\ Еуроки\ - \ ДЗ\ без\ мороки}\]
\[1)\ 214 \cdot 10 = 2140\]
\[2)\ 100 \cdot 328 = 32\ 800\]
\[3)\ 10\ 000 \cdot 546 = 5\ 460\ 000\]
\[4)\ 140 \cdot 80 = 11\ 200\]
\[5)\ 580 \cdot 240 = 139\ 200\]
\[6)\ 270 \cdot 3000 = 810\ 000\]