
简便计算.7-0.5×0.7-1.
简便计算.7-0.5×0.7-1.6535.72-4.9-(5.72+5.1)111-3.67×2.8-3.67×7.212.5×6.3+27×1.25+0.125÷0....
简便计算.7-0.5×0.7-1.65 35.72-4.9-(5.72+5.1)111-3.67×2.8-3.67×7.2 12.5×6.3+27×1.25+0.125÷0.01.
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(1)7-0.5×0.7-1.65
=7-0.35-1.65
=7-(0.35+0.65)
=7-1
=6;
(2)35.72-4.9-(5.72+5.1)
=(35.72-5.72)-(4.9+5.1)
=30-10
=20;
(3)111-3.67×2.8-3.67×7.2
=111-(3.67×2.8+3.67×7.2)
=111-3.67×(2.8+7.2)
=111-3.67×10
=111-36.7
=74.3;
(4)12.5×6.3+27×1.25+0.125÷0.01
=12.5×6.3+2.7×12.5+12.5×1
=12.5×(6.3+2.7+1)
=12.5×10
=125.
=7-0.35-1.65
=7-(0.35+0.65)
=7-1
=6;
(2)35.72-4.9-(5.72+5.1)
=(35.72-5.72)-(4.9+5.1)
=30-10
=20;
(3)111-3.67×2.8-3.67×7.2
=111-(3.67×2.8+3.67×7.2)
=111-3.67×(2.8+7.2)
=111-3.67×10
=111-36.7
=74.3;
(4)12.5×6.3+27×1.25+0.125÷0.01
=12.5×6.3+2.7×12.5+12.5×1
=12.5×(6.3+2.7+1)
=12.5×10
=125.

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