脱式计算【要简算】0.83+8.3×9.9
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脱式计算【要简算】0.83+8.3×9.9脱式计算【要简算】0.83+8.3×9.9脱式计算【要简算】0.83+8.3×9.90.83+8.3×9.9=0.83+0.83×99=0.83×(1+99)
脱式计算【要简算】0.83+8.3×9.9
脱式计算【要简算】
0.83+8.3×9.9
脱式计算【要简算】0.83+8.3×9.9
0.83+8.3×9.9
=0.83+0.83×99
=0.83×(1+99)
=0.83×100
=83
0.83+8.3×9.9
=8.3*0.1+8.3*9.9
=8.3(0.1+9.9)
=8.3*10
=83
0.83+8.3×9.9
=83×0.01+83×0.99
=83×（0.01+0.99）
=83×1
=83
0.83+8.3×9.9
=8.3*0.1+8.3*9.9
=8.3(0.1+9.9)
=8.3*10
=83