1.2x2.5+0.8x2.5怎样简算

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1.2x2.5+0.8x2.5怎样简算1.2x2.5+0.8x2.5怎样简算1.2x2.5+0.8x2.5怎样简算1.2x2.5+0.8x2.5=(1.2+0.8)x2.5=2x2.5=51.2x2.

1.2x2.5+0.8x2.5怎样简算
1.2x2.5+0.8x2.5怎样简算

1.2x2.5+0.8x2.5怎样简算
1.2x2.5+0.8x2.5
=(1.2+0.8)x2.5
=2x2.5
=5

1.2x2.5+0.8x2.5
=(1.2+0.8)x2.5
=2x2.5
=5

2.5x(1.2+0.8)=2.5x2=5

(1.2+0.8)*2.5

1.2x2.5+0.8x2.5
=2.5×(1.2+0.8)
=2.5×2
=5


1.2*2.5+0.8*2.5=(1.2+0.8)*2.5=2*2.5=5