简便运算3.34×3.33+2.22×9.99
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3.34×3.33+2.22×9.99
=3.34x3.33+6.66x3.33
=(3.34+6.66)x3.33
=10x3.33
=33.3
=3.34x3.33+6.66x3.33
=(3.34+6.66)x3.33
=10x3.33
=33.3
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展开全部
3.34×3.33+2.22×9.99
=3.34×3.33+2.22×3.33×3
=(3.34+6.66)×3.33
=10×3.33
=33.3
=3.34×3.33+2.22×3.33×3
=(3.34+6.66)×3.33
=10×3.33
=33.3
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