计算下面各题,能简算的一定要简算.234×43-43×34 ...
计算下面各题,能简算的一定要简算.234×43-43×34365÷125÷815.07-6.18-3.827.68+3.5+1.32+6.525×32×12578×101...
计算下面各题,能简算的一定要简算.234×43-43×34 365÷125÷815.07-6.18-3.82 7.68+3.5+1.32+6.525×32×125 78×101
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(1)234×43-43×34
=(234-34)×43
=200×43
=8600
(2)365÷125÷8
=365÷(125×8)
=365÷1000
=0.365
(3)15.07-6.18-3.82
=15.07-(6.18+3.82)
=15.07-10
=5.07
(4)7.68+3.5+1.32+6.5
=(7.68+1.32)+(3.5+6.5)
=9+10
=19
(5)25×32×125
=(25×4)×(8×125)
=100×1000
=100000
(6)78×101
=78×(100+1)
=78×100+78×1
=7800+78
=7878.
=(234-34)×43
=200×43
=8600
(2)365÷125÷8
=365÷(125×8)
=365÷1000
=0.365
(3)15.07-6.18-3.82
=15.07-(6.18+3.82)
=15.07-10
=5.07
(4)7.68+3.5+1.32+6.5
=(7.68+1.32)+(3.5+6.5)
=9+10
=19
(5)25×32×125
=(25×4)×(8×125)
=100×1000
=100000
(6)78×101
=78×(100+1)
=78×100+78×1
=7800+78
=7878.
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