(1)46×102= (2)5600÷80= (3)278×34=
(4)720×15= (5)475÷25= (6)864÷64.
分析:(1)(3)(4)根據(jù)三位數(shù)乘兩位數(shù)豎式計(jì)算的方法求解;
(2)(5)(6)根據(jù)除數(shù)是兩位數(shù)的除法豎式計(jì)算的方法求解.
解答:解:(1)46×102=4692;
  102
 
×46
612

408  
4692


(2)5600÷80=70;
      70
80
5600

  
560
    0
;

(3)278×34=9452;
  278
×  34
1112

834  
9452
;

(4)720×15=10800;
   720
 
×15
360

  72    
10800
;

(5)475÷25=19;
     19
25
475

  
25  
225

  
225
    0
;

(6)864÷64=13…32;
     13
64
864

  
64  
224

  
192
  32
點(diǎn)評(píng):本題考查了整數(shù)乘法和除數(shù)豎式計(jì)算的方法,注意把數(shù)位對(duì)齊.
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