帮帮忙；5.2X10.1要简算

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帮帮忙；5.2X10.1要简算帮帮忙；5.2X10.1要简算帮帮忙；5.2X10.1要简算5.2x10.1=5.2x(10+0.1)=5.2x10+5.2x0.1=52+0.52=52.525.2X1

帮帮忙；5.2X10.1要简算
帮帮忙；5.2X10.1要简算

帮帮忙；5.2X10.1要简算
5.2x10.1=5.2x(10+0.1)=5.2x10+5.2x0.1=52+0.52=52.52

5.2X10.1
=5.2X(10+0.1)
=5.2X10+5.2X0.1
=52+0.52
=52.52

5.2X（10+0.1）
=5.2X10+5.2X0.1
=52+0.52
=52.52

5.2x10.1
=5.2x(10+0.1)
=5.2x10+5.2x0.1
=52+0.52
=52.52

=5.2*(10+0.1)
=5.2*10+5.2*0.1
=52+0.52
=52.52