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怎样简便就怎样算7.6+8.76+2.4+1.24(37+15)×85+1360125×24×2521×99+2183×105-83×512×(324-272)÷26.

题目详情
怎样简便就怎样算
7.6+8.76+2.4+1.24         (37+15)×85+1360         125×24×25
21×99+21                  83×105-83×5             12×(324-272)÷26.
▼优质解答
答案和解析
(1)7.6+8.76+2.4+1.24
=(7.6+2.4)+(8.76+1.24)
=10+10
=20

(2)(37+15)×85+1360
=52×85+1360
=4420+1360
=5780

(3)125×24×25
=125×(8×3)×25
=(125×8)×(3×25)
=1000×75
=75000

(4)21×99+21
=21×(99+1)
=21×100
=2100

(5)83×105-83×5
=83×(105-5)
=83×100
=8300

(6)12×(324-272)÷26
=12×52÷26
=12×2
=24