能簡算要簡算 (1 118(6

2021-05-21 20:14:39 字數 2393 閱讀 3324

1樓:匿名使用者

(1/2+3/5)×5/11=11/10x5/11=1/28÷(6+2.5×4/5)

=8÷(6+2)

=8÷8=1

24÷6/7x5/14,(2/3-1/9)÷4/9要簡算 20

2樓:樂觀的愛數

24÷6/7x5/14

=24x7/6x5/14 (約分)=2x5

=1o(2/3-1/9)÷4/9

=2/3x9/4一1/9x9/4

=3/2-1/4

=5/4要簡算

3樓:艾康生物

24/6/7*5/14=24*7/6*5/14=24*5/12=10

(2/3-1/9)/4/9=2/3/4/9-1/9/4/9=3/2-1/4=5/4

4樓:匿名使用者

24÷6/7x5/14=24*49/15=392/5

(2/3-1/9)÷4/9=5/9*9/4=5/4

能簡便要簡便:4/5×4/7×5/4-1/3=? 5/9×6+4/9÷1/6=? 180÷2.5÷4=?

5樓:匿名使用者

4/5×4/7×5/4-1/3

=4/5×5/4×4/7-1/3

=4/7-1/3

=(12-7)/21

=5/21

5/9×6+4/9÷

1/6= 5/9×6+4/9×6=(5/9+4/9)×6=1×6=6180÷2.5÷4=180÷(2.5×4)=180÷10=18

1/8x9/7+5/7÷8能簡算的要簡算

6樓:提莫送你超神

1/8x9/7+5/7÷8可以先將裡面的5/7÷8化成5/7×1/81/8x9/7+5/7×1/8

=1/8×(9/7+5/7)

=1/8×16/7

=2/7

7樓:凌月霜丶

1/8x9/7+5/7÷8能簡算的要簡算

1/8x9/7+5/7÷8

=1/8*(9/7+5/7)

=1/8*16/7

=2/7

8樓:張zq芹

1/8x9/7+5/7÷8

=1/8x(9/7+5/7)

=1/8x16/7

=2/7提取相同的因數,加數相加

脫式計算,能簡算的要簡算: 46.5×99+46.5 12.5÷2.5÷0.4  2.6×1.9÷2.6×1.9 (7.7+1.54)

9樓:手機使用者

(1)46.5×99+46.5

=46.5×(99+1)

=46.5×100

=4650

(2)12.5÷2.5÷0.4

=12.5÷(2.5×0.4)

=12.5÷1

=12.5

(3)2.6×1.9÷2.6×1.9

=2.6÷2.6×1.9×1.9

=1×1.9×1.9

=3.61

(4)(7.7+1.54)÷0.7

=9.24÷0.7

=13.2

(5)10.8÷[(4.62-1.92)×4]=10.8÷[2.7×4]

=10.8÷10.8

=1(6)2.6×(2.139÷9.3×6.2)=2.6×(0.23×6.2)

=2.6×1.426

=3.7076

下面各題能簡算的要用簡便計算.1.36+4.85+2.64+6.15 98.5÷2.5÷4 5.4÷[2.5×(3.7-2.9)]0.8×(4-3.6

10樓:□小千

(1)1.36+4.85+2.64+6.15,=(1.36+2.64)+(4.85+6.15),=4+11,

=15;

(2)98.5÷2.5÷4,

=98.5÷(2.5×4),

=98.5÷10,

=9.85;

(3)5.4÷[2.5×(3.7-2.9)],=5.4÷[2.5×0.8],

=5.4÷2,

=2.7;

(4)0.8×(4-3.68)÷0.01,=0.8×0.32÷0.01,

=0.256÷0.01,

=25.6;

(5)83.7-12.83-0.17,

=83.7-(12.83+0.17),

=83.7-13,

=70.7;

(6)5.96+13×(3.2-3.12),=5.96+13×0.08,

=5.96+1.04,=7.

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