Question

Tính hợp lí nếu có thể

 

Answer 1

g: \(\left(-196\right)-235+796-\left(-465\right)\)

\(=-196+796-235+465\)

\(=600+230=830\)

h: \(\left(-478\right)-\left(-192\right)+1478-192+465\)

\(=\left(-478+1478\right)+192-192+465\)

=1000+465

=1465

l: \(\left(-245\right)+4789-\left(-7545\right)-64789\)

\(=-245+4789+7545-64789\)

\(=\left(-245+7545\right)+\left(4789-64789\right)\)

\(=7300-60000=-52700\)

m: \(296-1985-2396+1985-744\)

\(=\left(296-2396\right)+\left(1985-1985\right)-744\)

=-2100-744

=-2844

n: \(1952+\left(-376\right)-7952-\left(-476\right)\)

\(=1952-7952-376+476\)

=100-6000

=-5900

o: \(\left(-475\right)-237-\left(-475\right)+9237+14\)

\(=\left(-475+475\right)+\left(-237+9237\right)+14\)

=9000+14

=9014