问题 解答题
简便计算.
49+256+351
25×4425×99×4050×19×2
379-125-7559×1019600÷25÷43536-(558+536)
答案

①49+256+351

=(49+351)+256

=400+256

=656;

②25×44

=25×4×11

=100×11

=1100;

③25×99×40

=(25×40)×99

=1000×99

=99000;

④50×19×2

=(50×2)×19

=100×19

=1900;

⑤379-125-75

=379-(125+75)

=379-200

=179;

⑥59×101

=59×100+59

=5900+59

=5959;

⑦9600÷25÷4

=9600÷(25×4)

=9600÷100

=96;

⑧3536-(558+536)

=3536-536-558

=3000-558

=2442.

综合
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