300道脱式计算及答案是什么? (1)2.5*32*0.125 =(2.5*4)*(8*0.125) =10*1 =10 (2)3.5-7+6.5 =3.5+6.5-7 =3 (3)1.2×2.5+0.8×2.5 =2.5(1.2+0.8) =25 (4)8.9×1.25-0.9×1.25 =1.25(8.9-0.9) =10 (5)12.5×7.4×0.8 =12.5×0.8×7.4 =74 (6)6.5×9.5+6.5×0.5 =6.5×(9.5+0.5) =6.5×10 =65 (7)0.35×1.6+0.35×3.4 =0.35*(1.6+3.4) =0.35*5 =1.75 (8)6.72-3.28-1.72 =6.75-(3.28+1.72) =6.75-5 =1.75 (9)0.45+6.37+4.55 =0.45+4.55+6.37 =5+6.37 =11.37 (10)28×12.5-12.5×20 =(28-20)*12.5 =8*12.5 =100 (11)23.65-(3.07+3.65) =23.65-3.65-3.07 =20-3.07 =16.93 (12)(4+0.4×0.25)8×7×1.25 =(4+1)*7*10 =5*7*10 =350 (13)1.65×99+1.65 =1.65*(99+1) =1.65*100 =165 (14)27.85-(7.85+3.4) =27.85-7.85+3.4 =20+3.4 =23.4 (15)48×1.25+50×1.25×0.2×8 7.8×9.9+0.78 =7.8*(9.9+0.1) =7.8*10 =78 (16)4.8×46+4.8×54 =(46+54)*4.8 =100*4.8 =480 (17)673-327-173 =673-(327+173) =673-500 =173 (18)4.44*2.5 =1.11*(4*2.5) =1.11*10 =11.1 (19)3.5÷1.4 =(3.5÷0.7)÷(1.4÷0.7) =5÷2 =2.5 (20)1+2+3+4+5……+99+100 =(1+99)+(2+98)+(3+97)+.+(49+51)+50 =(100÷2-1)*100+50 =4900+50 =4950 62×7.1+2.9, =440.2+2.9, =443.1; 4.2×0.25, =(4+0.2)×0.25, =4×0.25+0.2×0.25, =1+0.05, =1.05; 5.2×4.3+0.8×4.3, =(5.2+0.8)×4.3, =6×4.3, =25.8. 8.5+1.5÷0.25×4, =8.5+6×4, =8.5+24, =32.5. 0.25×0.8+2.5% =0.2+2.5%, =0.225; 32×125×2.5, =4×8×125×2.5, =8×125×(4×2.5), =1000×10, =10000; 94÷(6.84×8.5-31.46÷0.55), =94÷(58.14-57.2), =94÷0.94, =100. 13÷0.4÷2.5, =13÷(0.4×2.5), =13÷1, =13; 1.25×2.5×0.8, =(1.25×0.8)×2.5, =1×2.5, =2.5; 1.5×101-1.5, =1.5×(101-1), =1.5×100, =150; 4.8×101, =4.8×100+4.8×1, =480+4.8, =484.8. 3.25×4.7-7.8, =15.275-7.8, =7.475; 0.57+0.43×0.24, =0.57+0.1032, =0.6732. 945÷5÷3, =189÷3, =63; 152×3÷2, =456÷2, =228; 43×12×6, =516×6, =3096. 200+25×33, =200+825, =1025; (25+26)×48, =51×48, =2448. 576-(290+107), =576-397, =179; 649+124-556, =773-556, =217. 4.82-5.2÷0.8×0.6, =4.82-6.5×0.6, =4.82-3.9, =0.92. 脱式计算288×101-288这道题的答案是什么 288x101-288 =288x(101-1) =288x100 =28800 六十加255加四十用脱式计算答案是什么 六十加255加四十用脱式计算答案是什么 60+255+40 =60+40+255 =100+255 =355 脱式计算14.5xo.56十o.56一5.5xo.56答案是什么 14.5xo.56十o.56一5.5xo.56 解;脱式计算 =14.5x0.56+1x0.56-5.5x0.56 运用乘法分配率 =(14.5+1-5.5)x0.56 =10x0.56 =5.6 祝学习进步。 那几道计算的答案是什么 题目灰哪去了? 30道“一元一次不等式组"计算题及答案是什么? 66x+17y=3967 25x+y=1200 答案:x=48 y=47 (2) 18x+23y=2303 74x-y=1998 答案:x=27 y=79 (3) 44x+90y=7796 44x+y=3476 答案:x=79 y=48 (4) 76x-66y=4082 30x-y=2940 答案:x=98 y=51 (5) 67x+54y=8546 71x-y=5680 答案:x=80 y=59 (6) 42x-95y=-1410 21x-y=1575 答案:x=75 y=48 (7) 47x-40y=853 34x-y=2006 答案:x=59 y=48 (8) 19x-32y=-1786 75x+y=4950 答案:x=66 y=95 (9) 97x+24y=7202 58x-y=2900 答案:x=50 y=98 (10) 42x+85y=6362 63x-y=1638 答案:x=26 y=62 (11) 85x-92y=-2518 27x-y=486 答案:x=18 y=44 (12) 79x+40y=2419 56x-y=1176 答案:x=21 y=19 (13) 80x-87y=2156 22x-y=880 答案:x=40 y=12 (14) 32x+62y=5134 57x+y=2850 答案:x=50 y=57 (15) 83x-49y=82 59x+y=2183 答案:x=37 y=61 (16) 91x+70y=5845 95x-y=4275 答案:x=45 y=25 (17) 29x+44y=5281 88x-y=3608 答案:x=41 y=93 (18) 25x-95y=-4355 40x-y=2000 答案:x=50 y=59 (19) 54x+68y=3284 78x+y=1404 答案:x=18 y=34 (20) 70x+13y=3520 52x+y=2132 答案:x=41 y=50 (21) 48x-54y=-3186 24x+y=1080 答案:x=45 y=99 (22) 36x+77y=7619 47x-y=799 答案:x=17 y=91 (23) 13x-42y=-2717 31x-y=1333 答案:x=43 y=78 (24) 28x+28y=3332 52x-y=4628 答案:x=89 y=30 (25) 62x-98y=-2564 46x-y=2024 答案:x=44 y=54 (26) 79x-76y=-4388 26x-y=832 答案:x=32 y=91 (27) 63x-40y=-821 42x-y=546 答案:x=13 y=41 (28) 69x-96y=-1209 42x+y=3822 答案:x=91 y=78 (29) 85x+67y=7338 11x+y=308 答案:x=28 y=74 (30) 78x+74y=12928 14x+y=1218 答案:x=87 y=83 1、一元一次不等式:数学名词,用不等号连线,含有个一个未知数,并且含有未知数项的次数都是1的,系数不为0的,左右两边为整式的式子叫做一元一次不等式。 2、概念定义一般用符号“=”连线的式子叫做等式。注意:等式的左右两边是代数式。一般地,用符号“”(或“≥”),“≠”连线的式子叫做不等式。 3、用不等号连线的,含有一个未知数,并且未知数项的次数都是1,系数不为0,左右两边为整式的式子叫做一元一次不等式。 4、等式性质: (1)等式的两边都加上(或减去)同一个数(或式子),不等号的方向不变。 (2)等式的两边都乘以(或除以)同一个正数,不等号的方向不变。 (3)等式的两边都乘以(或除以)同一个负数,不等号的方向改变。 454的20%怎样计算,答案是什么 454×20%=90.8 你好,本题已解答,如果满意 请点右上角“采纳答案”。 谁有66个脱式计算以及答案 1.3/7 × 49/9 - 4/3 2.8/9 × 15/36 + 1/27 3.12× 5/6 – 2/9 ×3 4.8× 5/4 + 1/4 5.6÷ 3/8 – 3/8 ÷6 6.4/7 × 5/9 + 3/7 × 5/9 7.5/2 -( 3/2 + 4/5 ) 8.7/8 + ( 1/8 + 1/9 ) 9.9 × 5/6 + 5/6 10.3/4 × 8/9 - 1/3 11.7 × 5/49 + 3/14 12.6 ×( 1/2 + 2/3 ) 13.8 × 4/5 + 8 × 11/5 14.31 × 5/6 – 5/6 15.9/7 - ( 2/7 – 10/21 ) 16.5/9 × 18 – 14 × 2/7 17.4/5 × 25/16 + 2/3 × 3/4 18.14 × 8/7 – 5/6 × 12/15 19.17/32 – 3/4 × 9/24 20.3 × 2/9 + 1/3 21.5/7 × 3/25 + 3/7 22.3/14 ×× 2/3 + 1/6 23.1/5 × 2/3 + 5/6 24.9/22 + 1/11 ÷ 1/2 25.5/3 × 11/5 + 4/3 26.45 × 2/3 + 1/3 × 15 27.7/19 + 12/19 × 5/6 28.1/4 + 3/4 ÷ 2/3 29.8/7 × 21/16 + 1/2 30.101 × 1/5 – 1/5 × 21 18.68.6×.02脱式计算答案 一、计算。(1)0.6×(2.7-0.9)÷0.24 (2)(9.18÷1.7-5.05)÷0.35 (3)5.4×〔(2.73+1.85)÷2.29〕 (4)〔(3.6+4.64-1.2)÷4〕×0.1 (5)18.5×0.2÷18.5×0.2 (6)0.4×(1+0.2-1+0.2)÷0.16 二、列式计算(1)8.5比2.03的3倍多多少? (2)23.5与10.5的和乘以它们的差,积是多少? (3)50减去6.5与1.8的积,差是多少?(4)4.68除以0.9的商比8.5乘以1.4的积少多少?三、用一个式子将下面四个互有关联的算式连结成综合算式。 1.2×3.6 4.32+17.68 4.09-3.98 0.11÷22 四、在□里填上适当的数(1)〔□-(7.5+8.5)〕×2.5=11 (2)7.5÷〔(2-1.25)×□〕=5 脱式计算(不带答案) 1、475+254+361 2、615+475+125 3、860-168+159 4、465+358-27 5、647-(85+265) 6、476+(65-29) 7、154×8÷16 8、400÷25×75 9、16×25÷16×25 10、552÷69×8 11、600-120÷10 12、(600-120)÷10 13、(466-25×4)÷6 14、(43+32)÷(357-352) 15、138+(27+48)÷25 16、56×19+25×8
2023-07-12 18:59:101