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能简便计算的简便计算就4道!(5)[(13+25)÷2]×511(6)735+24×207(7)0.234÷(0.9-0.25)(8)37.5×2.5+2.5×2.5
题目详情
能简便计算的简便计算 就4道!
(5)[(13 +25 )÷2]×511 (6)735+24×207
(7)0.234÷(0.9-0.25) (8)37.5×2.5+2.5×2.5
(5)[(13 +25 )÷2]×511 (6)735+24×207
(7)0.234÷(0.9-0.25) (8)37.5×2.5+2.5×2.5
▼优质解答
答案和解析
(5)[(13 +25 )÷2]×511
=38÷2×511
=19×511
=9709
(6)735+24×207
=735+4968
=5703
(7)0.234÷(0.9-0.25)
=0.234÷0.65
=0.36
(8)37.5×2.5+2.5×2.5
=2.5×（37.5+2.5）
=2.5×40
=25×4
=100
=38÷2×511
=19×511
=9709
(6)735+24×207
=735+4968
=5703
(7)0.234÷(0.9-0.25)
=0.234÷0.65
=0.36
(8)37.5×2.5+2.5×2.5
=2.5×（37.5+2.5）
=2.5×40
=25×4
=100
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