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递等式计算.(能简算的要简算 并写出主要过程)(1)305×10-10034÷29(2)17
问题详情
递等式计算.(能简算的要简算,并写出主要过程)
(1)305×10-10034÷29
(2)17
(3)8.53×
(4)(0.9÷
(5)
参考答案
(1)305×10-10034÷29,
=305×10-10034÷29,
=3050-346,
=2704;
(2)17617-6.25-334,
=17617-(6.25+3.75),
=17617-10,
=7617;
(3)8.53×38+11.47÷223,
=8.53×38+11.47×38,
=(8.53+11.47)×38,
=20×38,
=152;
(4)(0.9÷35+412)÷123+316,
=(32+412)÷123+316,
=6×35+316,
=185+316,
=62330;
(5)56×[213-(13+0.2)]÷35,
=56×[213-13-0.2]÷35,
=56×[2-0.2]÷35,
=56×1.8÷35,
=1.5×53,
=2.5.
考点:等式,过程