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计算12×6.6+2.5×3578-13-234.6+25+35+5.4415×(57-314÷314)2.8+49+7.2+5938+2.25+58+3425+57+35611-47+51137+59-37+49+470.75+58+14+0.37545+45+45+45+4545-(45+512)-1417-31748.3-16-5656×4.

题目详情

12×6.6+2.5×35    78-13-23    4.6+25+35+5.4     415×(57-314÷314)
2.8+49+7.2+59     38+2.25+58+34     25+57+35     611-47+511
37+59-37+49+47         0.75+58+14+0.375      45+45+45+45+4545-(45+512)-1417-317       
48.3-16-56        56×4.25+14÷6.
12×6.6+2.5×35    78-13-23    4.6+25+35+5.4     415×(57-314÷314)12×6.6+2.5×35    78-13-23    4.6+25+35+5.4     415×(57-314÷314)2.8+49+7.2+59     38+2.25+58+34     25+57+35     611-47+5112.8+49+7.2+59     38+2.25+58+34     25+57+35     611-47+51137+59-37+49+47         0.75+58+14+0.375      45+45+45+45+4545-(45+512)-1417-317       37+59-37+49+47         0.75+58+14+0.375      45+45+45+45+4545-(45+512)-1417-317       48.3-16-56        56×4.25+14÷6.48.3-16-56        56×4.25+14÷6.
▼优质解答
答案和解析
(1)12×6.6+2.5×35    
=79.2+87.5
=166.7

(2)78-13-23    
=65-23
=42

(3)4.6+25+35+5.4
=(4.6+5.4)+(25+35)
=10+60
=70

(4)415×(57-314÷314)
=415×(57-1)
=415×56
=23240

(5)2.8+49+7.2+59   
=(2.8+7.2)+(49+59)
=10+108
=118

(6)38+2.25+58+34     
=40.25+58+34 
=98.25+34
=132.25

(7)25+57+35
=(25+35)+57
=60+57
=117

(8)611-47+511
=564+511 
=1075

(9)37+59-37+49+47         
=(37-37)+(59+49)+47
=108+47
=155

(10)0.75+58+14+0.375
=(0.75+0.375)+(58+14)
=1.125+72
=73.125

(11)45+45+45+45+45
=45×5
=225

(12)45-(45+512)-1417-317
=45-45-512-1417-317
=(45-45)-(512+1417+317)
=-2246

(13)48.3-16-56        
=48.3-(16+56)
=48.3-72
=-23.7

(14)56×4.25+14÷6
=238+
7
3

=240
1
3
7
3
777333
=240
1
3
1
3
111333