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首页 > 期刊问答网 > 期刊问答 > 数学小论文五年级下册解方程题

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设小学实验室用去x元,则x-2/3x=48400-x-7/8(48400-x)

数学小论文五年级下册解方程题

135 评论(8)

tianya9306

题:10 x + 90 = 290 10 x = 290-90x= 200/10x= 20题:10 x + 91 = 291 10 x = 291-91x= 200/10x= 20题:10 x + 92 = 292 10 x = 292-92x= 200/10x= 20题:10 x + 93 = 293 10 x = 293-93x= 200/10x= 20题:10 x + 94 = 294 10 x = 294-94x= 200/10x= 20题:10 x + 95 = 295 10 x = 295-95x= 200/10x= 20题:10 x + 96 = 296 10 x = 296-96x= 200/10x= 20题:10 x + 97 = 297 10 x = 297-97x= 200/10x= 20题:10 x + 98 = 298 10 x = 298-98x= 200/10x= 20题:10 x + 99 = 299 10 x = 299-99x= 200/10x= 20题:10 x + 90 = 300 10 x = 300-90x= 210/10x= 21题:10 x + 91 = 301 10 x = 301-91x= 210/10x= 21题:10 x + 92 = 302 10 x = 302-92x= 210/10x= 21题:10 x + 93 = 303 10 x = 303-93x= 210/10x= 21题:10 x + 94 = 304 10 x = 304-94x= 210/10x= 21题:10 x + 95 = 305 10 x = 305-95x= 210/10x= 21题:10 x + 96 = 306 10 x = 306-96x= 210/10x= 21题:10 x + 97 = 307 10 x = 307-97x= 210/10x= 21题:10 x + 98 = 308 10 x = 308-98x= 210/10x= 21题:10 x + 99 = 309 10 x = 309-99x= 210/10x= 21题:10 x + 90 = 310 10 x = 310-90x= 220/10x= 22题:10 x + 91 = 311 10 x = 311-91x= 220/10x= 22题:10 x + 92 = 312 10 x = 312-92x= 220/10x= 22题:10 x + 93 = 313 10 x = 313-93x= 220/10x= 22题:10 x + 94 = 314 10 x = 314-94x= 220/10x= 22题:10 x + 95 = 315 10 x = 315-95x= 220/10x= 22题:10 x + 96 = 316 10 x = 316-96x= 220/10x= 22题:10 x + 97 = 317 10 x = 317-97x= 220/10x= 22题:10 x + 98 = 318 10 x = 318-98x= 220/10x= 22题:10 x + 99 = 319 10 x = 319-99x= 220/10x= 22题:10 x + 90 = 320 10 x = 320-90x= 230/10x= 23题:10 x + 91 = 321 10 x = 321-91x= 230/10x= 23题:10 x + 92 = 322 10 x = 322-92x= 230/10x= 23题:10 x + 93 = 323 10 x = 323-93x= 230/10x= 23题:10 x + 94 = 324 10 x = 324-94x= 230/10x= 23题:10 x + 95 = 325 10 x = 325-95x= 230/10x= 23题:10 x + 96 = 326 10 x = 326-96x= 230/10x= 23题:10 x + 97 = 327 10 x = 327-97x= 230/10x= 23题:10 x + 98 = 328 10 x = 328-98x= 230/10x= 23题:10 x + 99 = 329 10 x = 329-99x= 230/10x= 23题:10 x + 90 = 330 10 x = 330-90x= 240/10x= 24题:10 x + 91 = 331 10 x = 331-91x= 240/10x= 24题:10 x + 92 = 332 10 x = 332-92x= 240/10x= 24题:10 x + 93 = 333 10 x = 333-93x= 240/10x= 24题:10 x + 94 = 334 10 x = 334-94x= 240/10x= 24题:10 x + 95 = 335 10 x = 335-95x= 240/10x= 24题:10 x + 96 = 336 10 x = 336-96x= 240/10x= 24题:10 x + 97 = 337 10 x = 337-97x= 240/10x= 24题:10 x + 98 = 338 10 x = 338-98x= 240/10x= 24题:10 x + 99 = 339 10 x = 339-99x= 240/10x= 24题:10 x + 90 = 340 10 x = 340-90x= 250/10x= 25题:10 x + 91 = 341 10 x = 341-91x= 250/10x= 25题:10 x + 92 = 342 10 x = 342-92x= 250/10x= 25题:10 x + 93 = 343 10 x = 343-93x= 250/10x= 25题:10 x + 94 = 344 10 x = 344-94x= 250/10x= 25题:10 x + 95 = 345 10 x = 345-95x= 250/10x= 25题:10 x + 96 = 346 10 x = 346-96x= 250/10x= 25题:10 x + 97 = 347 10 x = 347-97x= 250/10x= 25题:10 x + 98 = 348 10 x = 348-98x= 250/10x= 25题:10 x + 99 = 349 10 x = 349-99x= 250/10x= 25题:10 x + 90 = 350 10 x = 350-90x= 260/10x= 26题:10 x + 91 = 351 10 x = 351-91x= 260/10x= 26题:10 x + 92 = 352 10 x = 352-92x= 260/10x= 26题:10 x + 93 = 353 10 x = 353-93x= 260/10x= 26题:10 x + 94 = 354 10 x = 354-94x= 260/10x= 26题:10 x + 95 = 355 10 x = 355-95x= 260/10x= 26题:10 x + 96 = 356 10 x = 356-96x= 260/10x= 26题:10 x + 97 = 357 10 x = 357-97x= 260/10x= 26题:10 x + 98 = 358 10 x = 358-98x= 260/10x= 26题:10 x + 99 = 359 10 x = 359-99x= 260/10x= 26题:10 x + 90 = 360 10 x = 360-90x= 270/10x= 27题:10 x + 91 = 361 10 x = 361-91x= 270/10x= 27题:10 x + 92 = 362 10 x = 362-92x= 270/10x= 27题:10 x + 93 = 363 10 x = 363-93x= 270/10x= 27题:10 x + 94 = 364 10 x = 364-94x= 270/10x= 27题:10 x + 95 = 365 10 x = 365-95x= 270/10x= 27题:10 x + 96 = 366 10 x = 366-96x= 270/10x= 27题:10 x + 97 = 367 10 x = 367-97x= 270/10x= 27题:10 x + 98 = 368 10 x = 368-98x= 270/10x= 27题:10 x + 99 = 369 10 x = 369-99x= 270/10x= 27题:10 x + 90 = 370 10 x = 370-90x= 280/10x= 28题:10 x + 91 = 371 10 x = 371-91x= 280/10x= 28题:10 x + 92 = 372 10 x = 372-92x= 280/10x= 28题:10 x + 93 = 373 10 x = 373-93x= 280/10x= 28题:10 x + 94 = 374 10 x = 374-94x= 280/10x= 28题:10 x + 95 = 375 10 x = 375-95x= 280/10x= 28题:10 x + 96 = 376 10 x = 376-96x= 280/10x= 28题:10 x + 97 = 377 10 x = 377-97x= 280/10x= 28题:10 x + 98 = 378 10 x = 378-98x= 280/10x= 28题:10 x + 99 = 379 10 x = 379-99x= 280/10x= 28题:10 x + 90 = 380 10 x = 380-90x= 290/10x= 29题:10 x + 91 = 381 10 x = 381-91x= 290/10x= 29题:10 x + 92 = 382 10 x = 382-92x= 290/10x= 29题:10 x + 93 = 383 10 x = 383-93x= 290/10x= 29题:10 x + 94 = 384 10 x = 384-94x= 290/10x= 29题:10 x + 95 = 385 10 x = 385-95x= 290/10x= 29题:10 x + 96 = 386 10 x = 386-96x= 290/10x= 29题:10 x + 97 = 387 10 x = 387-97x= 290/10x= 29题:10 x + 98 = 388 10 x = 388-98x= 290/10x= 29题:10 x + 99 = 389 10 x = 389-99x= 290/10x= 29题:11 x + 90 = 310 11 x = 310-90x= 220/11x= 20题:11 x + 91 = 311 11 x = 311-91x= 220/11x= 20题:11 x + 92 = 312 11 x = 312-92x= 220/11x= 20题:11 x + 93 = 313 11 x = 313-93x= 220/11x= 20题:11 x + 94 = 314 11 x = 314-94x= 220/11x= 20题:11 x + 95 = 315 11 x = 315-95x= 220/11x= 20题:11 x + 96 = 316 11 x = 316-96x= 220/11x= 20题:11 x + 97 = 317 11 x = 317-97x= 220/11x= 20题:11 x + 98 = 318 11 x = 318-98x= 220/11x= 20题:11 x + 99 = 319 11 x = 319-99x= 220/11x= 20题:11 x + 90 = 321 11 x = 321-90x= 231/11x= 21题:11 x + 91 = 322 11 x = 322-91x= 231/11x= 21题:11 x + 92 = 323 11 x = 323-92x= 231/11x= 21题:11 x + 93 = 324 11 x = 324-93x= 231/11x= 21题:11 x + 94 = 325 11 x = 325-94x= 231/11x= 21题:11 x + 95 = 326 11 x = 326-95x= 231/11x= 21题:11 x + 96 = 327 11 x = 327-96x= 231/11x= 21题:11 x + 97 = 328 11 x = 328-97x= 231/11x= 21题:11 x + 98 = 329 11 x = 329-98x= 231/11x= 21题:11 x + 99 = 330 11 x = 330-99x= 231/11x= 21题:11 x + 90 = 332 11 x = 332-90x= 242/11x= 22题:11 x + 91 = 333 11 x = 333-91x= 242/11x= 22题:11 x + 92 = 334 11 x = 334-92x= 242/11x= 22题:11 x + 93 = 335 11 x = 335-93x= 242/11x= 22题:11 x + 94 = 336 11 x = 336-94x= 242/11x= 22题:11 x + 95 = 337 11 x = 337-95x= 242/11x= 22题:11 x + 96 = 338 11 x = 338-96x= 242/11x= 22题:12 x + 99 = 375 12 x = 375-99x= 276/12x= 23题:13 x + 90 = 454 13 x = 454-90x= 364/13x= 28题:13 x + 91 = 455 13 x = 455-91x= 364/13x= 28题:13 x + 92 = 456 13 x = 456-92x= 364/13x= 28题:16 x + 99 = 467 16 x = 467-99x= 368/16x= 23题:16 x + 90 = 474 16 x = 474-90x= 384/16x= 24题:16 x + 91 = 475 16 x = 475-91x= 384/16x= 24题:16 x + 92 = 476 16 x = 476-92x= 384/16x= 24题:18 x + 93 = 471 18 x = 471-93x= 378/18x= 21题:18 x + 94 = 472 18 x = 472-94x= 378/18x= 21题:18 x + 95 = 473 18 x = 473-95x= 378/18x= 21题:18 x + 99 = 585 18 x = 585-99x= 486/18x= 27题:18 x + 90 = 594 18 x = 594-90x= 504/18x= 28题:19 x + 95 = 532 19 x = 532-95x= 437/19x= 23题:19 x + 96 = 533 19 x = 533-96x= 437/19x= 23题:19 x + 92 = 643 19 x = 643-92x= 551/19x= 29题:19 x + 93 = 644 19 x = 644-93x= 551/19x= 29题:19 x + 94 = 645 19 x = 645-94x= 551/19x= 29题:19 x + 95 = 646 19 x = 646-95x= 551/19x= 29题:19 x + 96 = 647 19 x = 647-96x= 551/19x= 29题:19 x + 97 = 648 19 x = 648-97x= 551/19x= 29题:19 x + 98 = 649 19 x = 649-98x= 551/19x= 29题:19 x + 99 = 650 19 x = 650-99x= 551/19x= 29
277 评论(13)

Crystal~liu

小学五年级解方程发方法一.移项所谓移项就是把一个数从等号的一边移到等号的另一边去。注意,加减法移项和乘除法移项不一样,移项规则:当把一个数从等号的一边移到另一边去的时候,要把这个数原来前面的运算符号改成和它相反的运算符号,比如“+”变成“-”,或是“×”变成“÷”请看例题:加减法移项:x + 4 = 9x=9-4 x=5 乘除法移项:3x=27 x=27÷3 x=9 常规题目,第一步,把所有跟未知数不能直接运算的数字,转移到与未知数相反的等号那一边。比如:3x - 4 = 83x=8+4 3x=12 x=4 第二种情况请记住,当未知数前面出现“-”或是“÷”的时候,要把这两个符号变成“+”或是“×”,具体如何改变请看下面例题:20 – 3x=2 20=2 + 3x -----(注意:也就是前面提过的移项问题,改变符号在方程里面就是移项) 20-2=3x 18=3x x=6 36÷4x = 336=3×4x ----(注意:也就是前面提过的移项问题,改变符号在方程里面就是移项) 36=12x x=3 未知数在小括号里面的情况,注意,这种情况要分两种,第一种是根据乘法分配律先把小括号去掉例如:3(3x+4) = 57 9x + 12=57 9x=57-12 9x=45 x=5 第二种情况就是,要看括号前面的那个数跟等号后面的那个数是否倍数关系,如果是倍数关系,可以互相除一下,当然,用这一种方法的前提就是等号另一边的数只有一个数字,如果有多个,则先要计算成一个。 第四种情况就是未知数在等号的两边都有,这种情况就是要把未知数都移项到一边,把其它的数字移项到另一边,具体规则,如果两个未知数前面的运算符号不一样,要把未知数前面是“-”的移到“+”这一边来,如果两个未知数前面的运算符号一样,则要把小一点的未知数移到大一点的未知数那一边去。解方程: 1)(5+X)+X=8÷2 2(X+X+5)=8 25000+X=6X 2)3200=450+5X+X X-8X=6 12X-8X=8 3)5×2X=15 2X=6 X+6=4 a 4)X-7X=6 91÷X =3 X+3=7 5)15X =3 3X-8=16 7(X-2)=2X+3 6)3X+9=27 18(X-2)=270 12X=300-4X 7)7X+3=4 3X÷5=8 30÷X+25=85 8)4×8-2X=6 6X-8×3=06 410-3X=170 9)3(X+5)=21 5X+8=43 6X-3X=18 10)5X+18=3X 5×3-X÷2=8 273÷X=35
102 评论(13)

lz/andy

解:设学校拨zhidao给小学部实验经费为x元,那么:学校拨给中学部实验经费为48400-x元则由题回意列式得:3分之1*x=8分之1*(48400-x)上式两边同乘以答24可得:8x=3(48400-x)8x=145200-3x11x=145200解得:x=13200所以:学校拨给小学部实验经费为13200元
338 评论(8)

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