7 06 2 4 5 7的簡便計算

2021-03-19 18:38:00 字數 2996 閱讀 9591

1樓:匿名使用者

簡便方法參考如下:

7.06×2.4-5.7

=(7+0.06)x(2+0.4)-5.

7=7x(2+0.4)+0.06x(2+0.

4)-5.7=14+2.8+0.

12+0.024-5.7=17.

944-5.7

=12.244

7.06x2.4-5.7簡便計算

2樓:金融業肥潭

7.06x2.4-5.7

=(7+0.06)x(2+0.4)-5.

7=7x(2+0.4)+0.06x(2+0.

4)-5.7=14+2.8+0.

12+0.024-5.7=16.

944-5.7

=11.244

按照有括號的先算括號裡面的,  沒有括號時先算乘除法,  後算加減法的順序計算:

7.06x2.4-5.7

=16.944-5.7

=11.244

3樓:生邁尚欣美

7.06×2.4-5.7

=16.944-5.7

=11.244

7.06x2.4-5.7怎麼簡便計算?

4樓:金融業肥潭

7.06x2.4-5.7

=(7+0.06)x(2+0.4)-5.

7=7x(2+0.4)+0.06x(2+0.

4)-5.7=14+2.8+0.

12+0.024-5.7=16.

944-5.7

=11.244

按照有括號的先算括號裡面的,  沒有括號時先算乘除法,  後算加減法的順序計算:

7.06x2.4-5.7

=16.944-5.7

=11.244

5樓:匿名使用者

7.06x2.4-5.7

=7x2.4+0.o6x2.4-5.7

=16.8+o.144-5.7

=16.8+0.144-5.7

=11.244

6樓:明溪

7.06×2.4-5.7的簡便計算方法如下圖所示:

(字太醜,請忽略)

7.06×2.4-5.7用簡便方法怎麼算

7樓:無憂寶寶就是我

1.7.06×2.4-5.7

=(7+0.06)

×(2+0.4)-(5+0.7)

=14+2.8+0.12+0.024-5-0.7(調整一下位回置:14-5+2.8-0.7+0.12+0.024)

=9+2.1+0.144

=11.1+0.144

=11.244

2.用到公式為答:

(a+b)(c+d)

=ab+ac+bc+bd

8樓:辛新土

7.06×

bai2.4-5.7的簡便du方zhi

法如dao下回

7.06×答2.4-5.7

=(7+0.06)*(2+0.4)-5.

7=7*(2+0.4)+0.06*(2+0.

4)-5.7=14+2.8+0.

12+0.024-5.7=17.

944-5.7

=12.244

7.06x2.4一5.7簡便方法

9樓:匿名使用者

採納我,系統將在2分鐘內給你最正確的答案和過程!

10樓:匿名使用者

沒有簡便方法吧。。。

遞等式計算,寫出必要的計算過程,能簡便計算的用簡便方法計算:(1)7.06×2.4-5.7 (2)5.4×99+5.4

11樓:百度使用者

(1)7.06×

2.4-5.7,

=16.944-5.7,

=11.244;

(2)5.4×99+5.4,

=5.4×(99+1),

=5.4×100,

=540;

(3)9.6×72+9.6×28,

=9.6×(72+28),

=9.6×100,

=960;

(4)(1.25×2.5)×4,

=1.25×(2.5×4),

=1.25×10,

=12.5;

(5)10.4+72×0.81,

=10.4+58.32,

=68.72;

(6)11×0.6×0.4,

=6.6×0.4,

=2.64;

(7)(12.8+4.99)÷0.2,

=17.79÷0.2,

=88.95;

(8)1.25×8+2.5×4.4,

=10+2.5×0.4×11,

=10+11,

=21.

7.06×2.4-5.7簡便計算

12樓:妙酒

7.06×2.4-5.7

=16.944-5.7

=11.244

13樓:姒迎寧寒鬆

7.06×2.4-5.7

=7.06x(2+0.4)-5.7

=7.06x2+7.06x0.4-5.7

=14.12+2.824-5.7

=16.944-5.7

=11.244

望採納@!謝謝!!

7.06✖️2.4➖5.7的簡算方法?

14樓:小小曹老師

7.06×2.4-5.7

=7.06×4×0.6-5.7

=282.4×0.6-5.7

=169.44-5.7

=163.74

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