125乘7加25乘45怎样用简便计算
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125*7+25*45
=1000-125+25*(5+40)
=1000-125+125+1000
=2000 。
=1000-125+25*(5+40)
=1000-125+125+1000
=2000 。
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你好:
125乘7加25乘45
=125×7+25×45
=25×5×7+25×45
=25×35+25×45
=25×(35+45)
=25×80
=2000
125乘7加25乘45
=125×7+25×45
=25×5×7+25×45
=25×35+25×45
=25×(35+45)
=25×80
=2000
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125乘7加25乘45
=125X7+25X45
=25X5X7+25X5X9
=25X5(7+9)
=25X5X16
=25X5X4X4
=25X4X5X4
=100X20
=2000
=125X7+25X45
=25X5X7+25X5X9
=25X5(7+9)
=25X5X16
=25X5X4X4
=25X4X5X4
=100X20
=2000
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解:原式=25×5×7+25×45
=25×35+25×45
=25×(35+45)
=2000
=25×35+25×45
=25×(35+45)
=2000
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=125X7+25X45
=25X5X7+25X5X9
=25X5(7+9)
=25X5X16
=25X5X4X4
=25X4X5X4
=100X20
=2000
=25X5X7+25X5X9
=25X5(7+9)
=25X5X16
=25X5X4X4
=25X4X5X4
=100X20
=2000
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