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怎样简便就怎样算;49×99+49168-52-48125×881300÷25÷4156×l0l-15699×4537+125+63+17599×56+56-462688-534+348×(29×l25)

题目详情
怎样简便就怎样算;
49×99+49       
168-52-48        
125×88        1300÷25÷4             
156×l0l-156 99×45     
37+125+63+175      99×56+56-46    
2688-534+34      8×(29×l25)
怎样简便就怎样算;
49×99+49       
168-52-48        
125×88        1300÷25÷4             
156×l0l-156 99×45     
37+125+63+175      99×56+56-46    
2688-534+34      8×(29×l25)
怎样简便就怎样算;
49×99+49        168-52-48        怎样简便就怎样算;
49×99+49       
168-52-48         125×88        1300÷25÷4             125×88       1300÷25÷4              156×l0l-156 99×45     156×l0l-15699×45      37+125+63+175      99×56+56-46    37+125+63+175     99×56+56-46     2688-534+34      8×(29×l25)2688-534+34     8×(29×l25)
▼优质解答
答案和解析
(1)49×99+49
=49×(99+1)
=49×100
=4900;

(2)168-52-48        
=168-(52+48)
=168-100
=68;

(3)125×88
=125×8×11
=1000×11
=11000;

(4)1300÷25÷4
=1300÷(25×4)
=1300÷100
=13;

(5)156×l0l-156
=156×(l0l-1)
=156×100
=15600;

(6)99×45 
=(100-1)×45
=100×45-1×45
=4500-45
=4455;

(7)37+125+63+175 
=(37+63)+(125+175)
=100+300
=400;

 (8)99×56+56-46
=(99+1)×56-46
=100×56-46
=5600-46
=5554;

(9)2688-534+34     
=2688-(534-34)
=2688-500
=2188;

(10)8×(29×l25)
=(8×125)×29
=1000×29
=29000.