能简便计算的要简便计算 2.5×13+0.9= 2.6+1.4×3= 0
能简便计算的要简便计算2.5×13+0.9=2.6+1.4×3=0.25×3.7×0.4=0.89×4.8+0.89×5.2=...
能简便计算的要简便计算
2.5×13+0.9= 2.6+1.4×3= 0.25×3.7×0.4=
0.89×4.8+0.89×5.2= 展开
2.5×13+0.9= 2.6+1.4×3= 0.25×3.7×0.4=
0.89×4.8+0.89×5.2= 展开
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2.5×13+0.9
=32.5+0.9
=33.4
2.6+1.4×3=
=2.6+4.2
=6.8
0.25×3.7×0.4
=3.7*0.25*0.4
=3.7*.01
=0.37
0.89×4.8+0.89×5.2=
=0.89*(4.8+5.2)
=0.89*10
=8.9
=32.5+0.9
=33.4
2.6+1.4×3=
=2.6+4.2
=6.8
0.25×3.7×0.4
=3.7*0.25*0.4
=3.7*.01
=0.37
0.89×4.8+0.89×5.2=
=0.89*(4.8+5.2)
=0.89*10
=8.9
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