Question

(6.7-1.59÷1.3)×400怎么简便计算？

Answer 1

简便计算过程如下:
（6.7-1.59÷1.3）×400
=（6.7-1.2）×400
=5.5×400
=2200

你好，本题已解答
如满意，请点采纳

Answer 2

(6.7-1.69÷1.3)×400怎么简便计算？
题目里1.59应该是1.69
(6.7-1.69÷1.3)×400
=（6.7-1.3）x400
=5.4x400
=2160

Answer 3

先乘除后加 减，先算括号里的数 。
(6.7－1.59÷1.3)x400
≈(6.7－1.22)ⅹ400
≈6.7ⅹ400－1.22╳400
≈2680－488
≈2192

Answer 4

这道题用不了简便算法

Answer 5

如果要求六个数都必须出现，则为127635和236175如果不要求六个数都出现，则所有满足要求的数如下：111555, 112225, 113565, 114235, 115575, 116245, 122275, 123615, 125625, 127635, 131655, 132325, 133665, 134335, 135675, 136345, 142375, 143715, 145725, 147735, 151755, 152425, 153765, 154435, 155775, 156445, 157115, 161135, 162475, 163145, 165155, 167165, 172525, 174535, 176545, 177215, 212725, 214735, 216745, 217415, 221435, 222775, 223445, 224115, 225455, 226125, 227465, 232155, 234165, 236175, 237515, 241535, 243545, 244215, 245555, 246225, 247565, 252255, 254265, 256275, 257615, 261635, 263645, 264315, 265655, 266325, 267665, 272355, 274365, 276375, 277715, 311215, 312555, 313225, 314565, 315235, 316575, 317245, 321265, 323275, 324615, 326625, 331315, 332655, 333325, 334665, 335335, 336675, 337345, 341365, 343375, 344715, 346725, 351415, 352755, 353425, 354765, 355435, 356775, 357445, 361465, 362135, 363475, 364145, 366155, 371515, 373525, 375535, 377545, 411715, 413725, 415735, 417745, 421765, 422435, 423775, 424445, 425115, 426455, 427125, 431145, 433155, 435165, 437175, 442535, 444545, 445215, 446555, 447225, 451245, 453255, 455265, 457275, 462635, 464645, 465315, 466655, 467325, 471345, 473355, 475365, 477375, 511545, 512215, 513555, 514225, 515565, 516235, 517575, 522265, 524275, 525615, 527625, 531645, 532315, 533655, 534325, 535665, 536335, 537675, 542365, 544375, 545715, 547725, 551745, 552415, 553755, 554425, 555765, 556435, 557775, 561125, 562465, 563135, 564475, 565145, 567155, 571175, 572515, 574525, 576535, 611375, 612715, 614725, 616735, 621425, 622765, 623435, 624775, 625445, 626115, 627455, 631475, 632145, 634155, 636165, 641525, 643535, 645545, 646215, 647555, 651575, 652245, 654255, 656265, 661625, 663635, 665645, 666315, 667655, 671675, 672345, 674355, 676365, 712545, 713215, 714555, 715225, 716565, 717235, 721255, 723265, 725275, 726615, 732645, 733315, 734655, 735325, 736665, 737335, 741355, 743365, 745375, 746715, 752745, 753415, 754755, 755425, 756765, 757435, 761455, 762125, 763465, 764135, 765475, 766145, 772175, 773515, 775525, 777535