25x(40十4)简便计算
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25x(40十4)简便计算
25x(40十4)简便计算25x(40十4)
=25×40+25×4
=1000+100
=1100
25x(4十8)简便计算25x(4+8)
=25x4+25x8
=100+200
=300
25X(4十88)简便计算25×(4+88)
=25×92
=25×(100-8)
=25×100-25×8
=2500-25×4×2
=2500-200
=2300
25x(40-4)怎么简便计算25x(40-4)
=25x40-25x4
=1000-100
=900
谢谢,请采纳
25x(4十20)怎么简便计算原式
=25x24
=25x(4x6)
=(25x4)x6
=100x6
=600
或者
=25x4+25x20
=100+500
=600
25x(24十12)简便计算25x(24十12)
=25×(40-4)
=1000-100
=900
简便计算25x(32十8)=25╳40=1000
25x(28+4)简便计算应该是
=25×28+25×4
=25×4×7+100
=100×7+100
=700+100
=800
25x(100+4)简便计算25x(100+4)
=25x100+25x4
=2500+100
=2600
25x(40十4)简便计算25x(40十4)
=25×40+25×4
=1000+100
=1100
25x(4十8)简便计算25x(4+8)
=25x4+25x8
=100+200
=300
25X(4十88)简便计算25×(4+88)
=25×92
=25×(100-8)
=25×100-25×8
=2500-25×4×2
=2500-200
=2300
25x(40-4)怎么简便计算25x(40-4)
=25x40-25x4
=1000-100
=900
谢谢,请采纳
25x(4十20)怎么简便计算原式
=25x24
=25x(4x6)
=(25x4)x6
=100x6
=600
或者
=25x4+25x20
=100+500
=600
25x(24十12)简便计算25x(24十12)
=25×(40-4)
=1000-100
=900
简便计算25x(32十8)=25╳40=1000
25x(28+4)简便计算应该是
=25×28+25×4
=25×4×7+100
=100×7+100
=700+100
=800
25x(100+4)简便计算25x(100+4)
=25x100+25x4
=2500+100
=2600
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