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脱式计算(能简便计算得要简便计算)35×(624-579)256-78-12225×99×40748+2436+152720÷16÷5125×32

题目详情
脱式计算(能简便计算得要简便计算)
35×(624-579)

256-78-122               

25×99×40
748+2436+152                  720÷16÷5                125×32
▼优质解答
答案和解析
(1)35×(624-579)
=35×45
=1575;
(2)256-78-122 
=256-(78+122)
=256-200
=56;
(3)25×99×40
=25×40×99
=1000×99
=99000;
(4)748+2436+152
=748+152+2436
=900+2436
=3336;
(5)720÷16÷5
=720÷(16×5)
=720÷80
=9;
(6)125×32
=125×8×4
=1000×4
=4000.