脱式计算:(124-85)×12÷26 (75+360)÷(20-5) 19.92+14.4-9.92 ...
脱式计算:(124-85)×12÷26(75+360)÷(20-5)19.92+14.4-9.9285.7-(15.3-4.8)9.5+4.85-6.1340-(2.75...
脱式计算:(124-85)×12÷26 (75+360)÷(20-5) 19.92+14.4-9.92 85.7-(15.3-4.8) 9.5+4.85-6.13 40-(2.75+0.86)
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(1)(124-85)×12÷26,
=39×12÷26,
=468÷26,
=18;
(2)(75+360)÷(20-5),
=435÷15,
=29;
(3)19.92+14.4-9.92,
=19.92-9.92+14.4,
=10+14.4,
=24.4;
(4)85.7-(15.3-4.8),
=85.7-10.5,
=75.2;
(5)9.5+4.85-6.13,
=14.35-6.13,
=8.22;
(6)40-(2.75+0.86),
=40-3.61,
=36.39.
=39×12÷26,
=468÷26,
=18;
(2)(75+360)÷(20-5),
=435÷15,
=29;
(3)19.92+14.4-9.92,
=19.92-9.92+14.4,
=10+14.4,
=24.4;
(4)85.7-(15.3-4.8),
=85.7-10.5,
=75.2;
(5)9.5+4.85-6.13,
=14.35-6.13,
=8.22;
(6)40-(2.75+0.86),
=40-3.61,
=36.39.
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