
3.2x12.5x25
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解:3.2x12.5x25等于( 1000 )
∵已知需求出3.2x12.5x25等于多少
∴3.2 x 12.5 x 25
= (4 × 0.8)× 12.5 × 25
= 4 × 0.8 × 12.5 × 25
= (0.8 × 12.5)× (4 × 25)
= 10 × 100
= 1000
答:3.2x12.5x25等于1000
∵已知需求出3.2x12.5x25等于多少
∴3.2 x 12.5 x 25
= (4 × 0.8)× 12.5 × 25
= 4 × 0.8 × 12.5 × 25
= (0.8 × 12.5)× (4 × 25)
= 10 × 100
= 1000
答:3.2x12.5x25等于1000
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