(99×78+33×66)等于多少?

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(99×78+33×66)等于多少?(99×78+33×66)等于多少?(99×78+33×66)等于多少?9900你好,首先问你一下啊,你没计算器啊?答案是:990099×78+33×66=99x7

(99×78+33×66)等于多少?
(99×78+33×66)等于多少?

(99×78+33×66)等于多少?
9900

你好,首先问你一下啊,你没计算器啊?
答案是:9900

99×78+33×66
=99x78 + 33x3x22
=99x78 + 99x22
=99 x (78+22)
=99 x 100
=9900

原式=33*3*78+33*3*22
=33*3*(78+22)
=99*100
=9900

=33*3*78+33*3*22
=33*3*(78+22)
=99*100
=9900

解:原式=33*3*78+33*3*22
=33*3*(78+22)
=99*100
=9900
最后,祝你数学越学越好!