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用递等式计算:(能巧算的要巧算)410+312×6(8-5)×625897+432-297840÷2×421+563+279+4371423-434-566.

题目详情
用递等式计算:(能巧算的要巧算)
410+312×6                  (8-5)×625                897+432-297
840÷2×4                21+563+279+437              1423-434-566.
410+312×6                  (8-5)×625                897+432-297
840÷2×4                21+563+279+437              1423-434-566.
410+312×6                  (8-5)×625                897+432-297410+312×6                  (8-5)×625                897+432-297840÷2×4                21+563+279+437              1423-434-566.840÷2×4                21+563+279+437              1423-434-566.
▼优质解答
答案和解析
(1)410+312×6
=410+1872
=2282;

(2)(8-5)×625
=3×625
=1875;

(3)897+432-297
=897-297+432
=600+432
=1032;

(4)840÷2×4
=420×4
=1680;

(5)21+563+279+437 
=(21+279)+(437+563)
=300+1000
=1300;

 (6)1423-434-566
=1423-(434+566)
=1423-1000
=423.