99x22x33x34简便运算
如何用简便方法计算99X22 33X34 -
利用分配律,
99X22十33X34 =33*66+33*34 =33*(66+34)33*100 =3300
利用分配律,
99X22十33X34 =33*66+33*34 =33*(66+34)33*100 =3300
99x22+33x34 =(33x3x22+33x34)33x66+33x34 =33x(66+34)33x100 =3300 希望能帮到你!
运用乘法分配律进行简便计算:99×22+33×34 =33×3×22+33×34 =33×(3×22+34)=33×100 =3300 运算定律1、加法交换律:在两个数的加法运算中,交换两个加数的位置,和不变。字母表示:a+b=b+a 2、加法结合律:三个数相加,先把前两个数相加,再加另一个加数;或者先把后两等会说。
怎样算简便:99X22十33x34 -
99X22十33x34 =33×3X22十33x34 =33×66+33x34 =33×(66+34)33×100 =3300
99X22+33X34 =3x33x22+33X34 =33x(66+34)=33x100 =3300
99x22+33x34用脱式计算简便 -
99x22+33x34 =(99/3)x(3x22)+33x34 =33x66+33x34 =33x(66+34)=33x100 =3300
这道题考查简便运算,观察算式规律,99可以转换为33x3,加号前后都有33,可以运用结合率:99x22+33x34 =33x3x22+33x34 =33x66+33x34 =33x(66+34)33x100 =3300
如何用简便方法计算99X22+33X34 -
99X22+33X34 =33x(3x22+34)=33x(66+34)=33x100 =3300
99x22+33x34=(33x3x22+33x34)33x66+33x34=33x(66+34)33x100=3300希望能帮到你!