问题 解答题
706×5=800×6=504×6=
327×8=308×7=236×4=
答案

(1)706×5,

=(700+5)×5,

=700×5+5×5,

=3500+25,

=3525;

(2)800×6,

=(8×6)×100,

=4800;

(3)504×6,

=(500+4)×6,

=500×6+4×6,

=3000+24,

=3024;

(4)327×8,

=(300+20+7)×8,

=300×8+20×8+7×8,

=2400+160+56,

=2400+(160+56),

=2400+216,

=2616;

(5)308×7,

=(300+8)×7,

=300×7+8×7,

=2100+56,

=2156;

(6)236×4,

=(200+30+6)×4,

=200×4+30×4+6×4,

=800+120+24,

=944;

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