( 315+372 ) . 3 + ( 372 + 315 )
= (315+315) + (372+372) . 3
= 630 + 744 . 3
= 1374 . 3
= 4122
( 315+372 ) . 3 + ( 372 + 315 )
= (315+315) + (372+372) . 3
= 630 + 744 . 3
= 1374 . 3
= 4122
\(\frac{\left(315+372\right).3+\left(372+315\right).7}{26.13+74.14}\)
\(\frac{\left(315+372\right).3+\left(372+315\right).7}{26.13+74.14}\)
B= \(\frac{\left(315+372\right).3+\left(372+315\right).7}{26.13+74.14}\)
Tính nhanh
Tính: \(\frac{\left(315+372\right).3+\left(372+315\right).7}{26.13+74.14}\)
\(\frac{\left(315+372\right).3+\left(372+315\right).7}{26.13+74.48}\)=?
[(315+372).3+(372+315).7]:(26.13+74.14)
Tính:
Tính thuận tiện nhất
A)\(\frac{\left(315+372\right).3+\left(372+315\right).7}{26.13+74.14}\)
B) \(\frac{1978.1979+1980.21+1958}{1980.1979-1978.1979}\)
C)\(\frac{26.108-26.12}{32-28-24-20+16-12+8-4}\)
.
.
.
.
.
.
.
.
Cảm ơn vì đã giải cho mk nè
[(315+372).3+(372+3150).7]:(26.13+74.14)