Ta có: \(125\cdot98-52\cdot25-152\cdot46\)
\(=25\cdot\left(5\cdot98-52\right)-152\cdot46\)
\(=25\cdot438-152\cdot46\)
\(=10950-6992\)
=3958
Ta có: \(125\cdot98-52\cdot25-152\cdot46\)
\(=25\cdot\left(5\cdot98-52\right)-152\cdot46\)
\(=25\cdot438-152\cdot46\)
\(=10950-6992\)
=3958
a, 2.82.12+4.6.18
b,125.98-125.46-52.25-120
tinh nhanh :
a/ 48.19+48.115+.52
b/ 27.121-87.27+73.34
c/ 125.98-125.46-52.25
Tính hợp lí:
a) 17.93+116.83+17.23
b)125.98-125.46-52.25
tính nhanh :
58.75+58.50-58.25
66.25+5.66.66.14+33.66
125.98-125.46-52.25
53.39+43.39-53.21+47.21
12.35+35.182-35.94
35.23+35.41+64.65
125.98-125.46-52.25
tính nhanh
ai nhanh mình k cho
TÍNH NHANH:
a,48.19+48.115+134.52
b,27.121-87.27+73.34
c,125.98-125.46-52.25
trình bày cách giải hộ mình nhé
bài 1: tính nhanh
a) 48.19+48.115+134.52
b) 27.121-87.27+73.34
c)125.98-125.46-52.25
d) 136.23+136.17-40.36
e) 17.93+116.83+17.23
ê)19.27+47.81+19.20
f) 87.23+13.93+70.87
bài 1 : tính nhanh
48.19+48.115+134.52
27.121-87.27+73.34
125.98-125.46-52.25
136.23+136.17-40.36
17.93+116.83+17.23
baif tìm x
|x-3|=|5|+|7|
4-(7-x)=x-(13-4)
1. Tính nhanh
a) 58.75+58.50-58.25 e)48.19+48.114+134.52
b) 128.35+128.32+ 128.22. f) 27.121-87.27+73.34
c) 12.35+53.182-35.94 g) 125.98-125.46-52.25