如题所述
数学题:14*22*26简算法:
=2(7x11x13)
=2(77x13)
=2(77x10+77x3)
=2(770+231)
=1540+462
=2002
=2(7x11x13)
=2(77x13)
=2(77x10+77x3)
=2(770+231)
=1540+462
=2002
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第1个回答 2021-05-07
14X22X26=14X22X(25+1)=7X11X2X2X25+14X22=77X100+14X(20+2)=7700+280+28=8008。
第2个回答 2021-05-07
=2×(7x11x13)
=2×(77x13)
=2×(77x10+77x3)
=2×(770+231)
=1540+462
=2002
=2×(77x13)
=2×(77x10+77x3)
=2×(770+231)
=1540+462
=2002
第3个回答 2021-05-08
数学题:14*22*26简算法是怎样的?
14*22*26
=7x2x11x2x(25+1)
=7x11x【4x(25+1)】
=77x(100+4)
=7700+308
=8008
14*22*26
=7x2x11x2x(25+1)
=7x11x【4x(25+1)】
=77x(100+4)
=7700+308
=8008
第4个回答 2021-05-08
14×22×26
=[14×(20+2)]×26
=(14×20+14×2)×26
=(280+28)×26
=300×26+8×26
=7800+208
=8008
=[14×(20+2)]×26
=(14×20+14×2)×26
=(280+28)×26
=300×26+8×26
=7800+208
=8008