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脱式计算,能简算的要简算.17.59-9.74+5.7319.92+11.55-9.9267.44-(15.72-23.89)40-(2.75+0.14)8.84+4.16-8.84+4.1615.46-5.7+4.3.

题目详情
脱式计算,能简算的要简算.
17.59-9.74+5.7319.92+11.55-9.9267.44-(15.72-23.89)
40-(2.75+0.14)8.84+4.16-8.84+4.1615.46-5.7+4.3.
▼优质解答
答案和解析
(1)17.59-9.74+5.73
=7.85+5.73
=13.58;

(2)19.92+11.55-9.92
=19.92-9.92+11.55
=10+11.55
=21.55;

(3)67.44-(15.72-23.89)
=67.44-15.72+23.89
=51.72+23.89
=75.61;

(4)40-(2.75+0.14)
=40-2.89
=37.11;

(5)8.84+4.16-8.84+4.16
=(8.84-8.84)+(4.16+4.16)
=0+8.32
=8.32;

(6)15.46-5.7+4.3
=9.76+4.3
=14.06.