563—397的简便方法

2026-02-14 02:12:16

1、563-397的简便方法:

=563 - (400 - 3)

=563 -400 + 3

=163 + 3

=166

2、563-397的简便方法:

=(400 + 163)- 397

=400 - 397 + 163

=3 + 163

=166


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