递等式计算,能巧算的要巧算.(80×46+80×54)÷25×4 14500÷125 ...
递等式计算,能巧算的要巧算.(80×46+80×54)÷25×414500÷12536-36÷[150÷(50-25)]101×1001-1001125×56×25132...
递等式计算,能巧算的要巧算.(80×46+80×54)÷25×4 14500÷125 36-36÷[150÷(50-25)]101×1001-1001 125×56×25 132×125-125×100
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(1)(80×46+80×54)÷25×4
=(46+54)×80÷25×4
=100×80÷25×4
=8000÷25×4
=320×4
=1280
(2)14500÷125
=14500÷(5×25)
=14500÷5÷25
=2900÷25
=116
(3)36-36÷[150÷(50-25)]
=36-36÷[150÷25]
=36-36÷6
=36-6
=30
(4)101×1001-1001
=(101-1)×1001
=100×1001
=100100
(5)125×56×25
=(125×8)×(7×25)
=1000×175
=175000
(6)132×125-125×100
=(132-100)×125
=32×125
=4×(8×125)
=4×1000
=4000
=(46+54)×80÷25×4
=100×80÷25×4
=8000÷25×4
=320×4
=1280
(2)14500÷125
=14500÷(5×25)
=14500÷5÷25
=2900÷25
=116
(3)36-36÷[150÷(50-25)]
=36-36÷[150÷25]
=36-36÷6
=36-6
=30
(4)101×1001-1001
=(101-1)×1001
=100×1001
=100100
(5)125×56×25
=(125×8)×(7×25)
=1000×175
=175000
(6)132×125-125×100
=(132-100)×125
=32×125
=4×(8×125)
=4×1000
=4000
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