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58x14 16x58简便运算

58x36-16x58的简便运算58x36-16x58=58*(36-16)=58*20=1160

58x5858x2216x58=58x(582216)=58x20=1160

58x14+58x6=58(14+6}=58x20=1160

58x58 +48x58用简便计算58x58 +48x58=58*(58+48)=58*(100+6)=58*100+58*6=6148

58x14-14x29+14x71=(58-29+71)x14=100x14=1400

=49x58+1x58=58x(49+1)=58x50=2900

=58*(58+42)=58*100=5800

=58X58+58X1+58X1=58X(58+1+1)=58X60=3480

58x36+58*65-58=58x(36+65-1)=58*100=5800

原式=58x15=58x(10+5)=58x10+58x5=580+290=870

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