6.3×102 简算
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6.3×102简算6.3×102简算6.3×102简算6.3×102=6.3*(100+2)=6.3*100+6.3*2=630+12.6=642.6(6+0.3)X(100+2)==6.3*(100
6.3×102 简算
6.3×102 简算
6.3×102 简算
6.3×102
=6.3*(100+2)
=6.3*100+6.3*2
=630+12.6
=642.6
(6+0.3)X(100+2)=
=6.3*(100+2)=630+12.6=642.6
(6.3*10)* (102*10)
6.3×102
=6.3*(100+2)
=6.3*100+6.3*2
=630+12.6
=642.6