4.36×9.4+9.9×5.64简便运算等于多少?
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4.36×9.4+9.9×5.64
=4.36×9.4+(9.4+0.5)×5.64
=4.36×9.4+9.4×5.64+0.5×5.64
=9.4×(4.36+5.64)+2.82
=9.4×10+2.82
=94+2.82
=96.82
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展开全部
4.36×9.4+9.9×5.64
=4.36×9.4+(9.4+0.5)×5.64
=4.36×9.4+9.4×5.64+0.5×5.64
=(4.36+5.64)×9.4+2.82
=9×(10-0.6)+2.82
=90-5.4+2.82
=87.42
=4.36×9.4+(9.4+0.5)×5.64
=4.36×9.4+9.4×5.64+0.5×5.64
=(4.36+5.64)×9.4+2.82
=9×(10-0.6)+2.82
=90-5.4+2.82
=87.42
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