2.22×9.9+6.66×6.

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2.22×9.9+6.66×6.2.22×9.9+6.66×6.2.22×9.9+6.66×6.原式=6.66×3.3+6.66×6.7=6.66×(3.3+6.7)=6.66×10=66.62.22

2.22×9.9+6.66×6.
2.22×9.9+6.66×6.

2.22×9.9+6.66×6.
原式=6.66×3.3+6.66×6.7
=6.66×(3.3+6.7)
=6.66×10
=66.6

2.22×9.9+6.66×6.7
=2.22×3×3.3+6.66×6.7
=6.66×3.3+6.66×6.7
=6.66×(3.3+6.7)
=6.66×10
=66.6

2.22*9.9+2.22*3*6.7=2.22*(9.9+3*6.7)=2.22*30=66.6

吐沫

=2.22*(9.9+3*6.7)=2.22*(9.9+20.1)=66.6