问题 解答题
脱式计算:
360+(250-118)38+(82+198)134+298326-197.
答案

(1)360+(250-118),

=360+132,

=492;

(2)38+(82+198),

=38+280,

=318;

(3)134+298,

=134+(300-2),

=134+300-2,

=434-2,

=432;

(4)326-197,

=326-(200-3),

=326-200+3,

=126+3,

=129.

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