www.1862.net > 136×27加27×31加27×34怎样简便计算

136×27加27×31加27×34怎样简便计算

136×27加27×31加27×34 =27×(136+31+34) =27×(200+1) =27×200+27 =5400+27 =5427

136x58+43x136-136x1 =136x(58+43-136)

(1)756-3910+216-2.1=(756+216)-(3910+2.1)=10-6=4;(2)(23+16?34)÷136=23×36+16×36-34×36=24+6-27=3;(3)12×3.2+5.6×0.5+1.2×50%=12×(3.2+5.6+1.2)=12×10=5;(4)[53?(25+34)]÷314=[53-2320)]÷314=3160÷314=115.

136x24-37x24+24 =24x(136+1-37) =24x100 =2400

1213÷87﹢78÷13,=1213×78+78×113,=(1213+113)×78,=1×78,=78; 0.4×713+25÷136+60%,=0.4×713+0.4×613+0.6,=0.4×(713+613)+0.6,=0.4×1+0.6,=1; 4×513+0.75×813,=0.75×(513+813),=0.75×1,=0.75.

136+136×99 =136×(1+99) =136×100 =13600

=(136-36)X36 =100X36 =3600

136 69 31 24用简便方怎么计算 136 69 31 24 =(136+24)+(69+31) =160+100 =260

264×9 9×136用简便方法计算 =9x(264+136) =9x400 =3600

264+329+136+271 这道题我认为很简单,可以运用加法交换律来计算:两个数相加,交换加数的位置,和不变。 还要运用加法结合律:三个数相加,先把前两个数相加,或者把后两个数相加,和不变。 所以,运用加法交换律和结合律,就是这样解答: 264+...

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