a) 64x25+35x25+25

=64x25+35x25+25x1

=25x(64+35+1)

=25x100

=2500

câu b bài 3 thiếu kết quả rồi bạn

=25x(64+25+1)

=25x90

=2250

1) tính nhanh

cau 1 :64x25+25x25+25

cau 2 :58x42+32x8+5x16

cau 3 :42x43+43x57+43)-360:4

cau 1 :372-19x4)+(981:9-13)

. là gì hả bạn

12.25+29.25+59.25

=25.(12+29+59)

=25.100

=2500.

\(26\times\left(-25\right)+36\times\left(-25\right)\)

\(=\left(-25\right)\times\left(26+36\right)=\left(-25\right)\times62=-1550\)

\(26.\left(-25\right)+36.\left(-25\right)\)

\(=\left(-25\right).\left(26+36\right)\)

\(=-25.62\)

\(=-1550\)

\(9\frac{7}{25}+\frac{3}{25}\cdot\frac{7}{11}-\frac{7}{25}\cdot\frac{14}{11}\)

\(=9\frac{7}{25}+\frac{3}{25}\cdot\frac{7}{11}-\frac{14}{25}\cdot\frac{7}{11}\)

\(=9\frac{7}{25}+\frac{7}{11}\cdot\left(\frac{3}{25}-\frac{14}{25}\right)\)

\(=9\frac{7}{25}+\frac{7}{11}\cdot\left(-\frac{11}{25}\right)\)

\(=9\frac{7}{25}+\left(-\frac{7}{25}\right)\)

\(=9\)

Chắc sai =]]

thank

\(600:25=24\)

\(30000:125=240\)

\(28x25=700\)

24 , 240 , 700

k mik nha mấy bn

\(75.\left(25-52\right)-52.\left(25-75\right)\)

\(=75.25-75.52-52.25+52.75\)

\(=25.\left(75-52\right)\)'

\(=25.23=575\)

75.(25-52)-52.(25-75)

=75.25-75.52-52.25-52.75

=...tự làm đi