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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+45 | 45-(45+512)-1417-317 |
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+
=240
7 7 73 3 3
=240
1 1 13 3 3
=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 |
=240
1 |
3 |
1 |
3 |
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