递等式计算4.7+9.69-546
用递等式计算:4.7+9.69-5.46; ...
用递等式计算:
4.7+9.69-5.46; 200-(132+1080÷36);
520-3000÷75×6; (1470+530)÷50×2. 展开
4.7+9.69-5.46; 200-(132+1080÷36);
520-3000÷75×6; (1470+530)÷50×2. 展开
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(1)4.7+9.69-5.46
=14.39-5.46
=8.93
(2)200-(132+1080÷36)
=200-(132+30)
=200-162
=38
(3)520-3000÷75×6
=520-40×6
=520-240
=280
(4)(1470+530)÷50×2
=2000÷50×2
=40×2
=80
=14.39-5.46
=8.93
(2)200-(132+1080÷36)
=200-(132+30)
=200-162
=38
(3)520-3000÷75×6
=520-40×6
=520-240
=280
(4)(1470+530)÷50×2
=2000÷50×2
=40×2
=80
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