計算下面各題(能簡算的要簡算,並寫出簡算過程)6 64 0 22 9 78 3 24 19 75

2021-04-21 09:01:38 字數 1736 閱讀 8467

1樓:手機使用者

(du1)6.64+0.22+9.78+3.36=(zhi6.64+3.36)dao+(0.22+9.78)=10+10

=20;

回(2)75.1+24.19-75.1+24.19=(75.1-75.1)+(24.19+24.19)=0+48.38

=48.38;

(3)36900÷(2060-1910)+60=36900÷150+60

=246+60

=306;

(4)248×

答6+274÷137

=1488+2

=1490.

脫式計算下面各題(能簡算的要用簡便方法計算,並寫出簡算過程). 450÷18×25+173. 670+65÷

2樓:匿名使用者

(1)450÷18×25+173,

=25×25+173,

=625+173,

=798;

(2)670+65÷3×35,

=670+65×(13×3

5),=670+65×15,

=670+13,

=683;

(3)58-1

6×45+57,=58

-215

+57,

=59120

+57,

=5759

120;

(4)38-12×6÷16,

=38-72÷16,

=38-4.5,

=33.5.

計算.能簡算的要簡算,並寫出簡算過程.(1)(0.12+0.22+0.32+0.42)2÷(0.13+0.23+0.33+0.43)(2)3

3樓:匿名使用者

(1)(0.12+0.22+0.32+0.42)2÷(0.13+0.23+0.33+0.43),

=(0.01+0.04+0.09+0.16)2÷(0.001+0.008+0.027+0.064),

=0.32÷0.1,

=0.09÷0.1,

=0.9;

(2)3.97÷7+1

7×4.03-17,

=3.97×17+1

7×4.03?17,

=(3.97+4.03-1)×17,

=7×17,

=1;(3)0.0021×[16

7+2.93÷(112

3-1.9)]÷0.001,

=0.0021×[16

7+293

100÷923

30]÷0.001,

=0.0021×[16

7+293

100×30

293]÷0.001,

=0.0021×[167+3

10]÷0.001,

=0.0021×151

70÷0.001,

=0.00453÷0.001,

=4.53;

(4)0.125×0.25×0.

5×64,=0.125×0.25×0.

5×8×4×2,=(0.125×8)×(0.25×4)×(0.

5×2),=1×1×1,

=1;(5)4936×(0.75×42.7-0.573×25+57.3)÷3.

=4936×(32.025-14.325+57.3)÷3,=4936×75÷3,

=370200÷3,

=123400.

計算下面各題,能簡算的要簡算

1 9.5 1.06 2.52 2.4 10.07 1.05 9.02 2 3.4 0.26 0.74 3.4 3.4 0.26 0.74 3.4 1 3.4 3 1.25 32 0.8 1.25 0.8 32 1 32 32 4 7.09 99 7.09 7.09 99 1 7.09 100 70...

計算下面各題,能簡算的要簡算。,一 計算下面各題,能簡算的要簡算。 1 5 2 9

1 5 2 9 3 10 1 5 1 15 3 15 1 15 2 15 一 計算下面各題,能簡算的要簡算。1 5 2 9 3 10 可以用簡便方法,先把五分之一變成2 10,在與3 10提取1 10.這樣就可以用簡便方法計算了,下面通過 分析這道題。你好,很高興為你解答!1 5 2 9 3 10 ...

計算下面各題,能簡算的要簡算,計算下面各題,能簡算的要簡算

3 4 5 8 3 4 3 4 1 5 8 3 4 3 8 9 32 4 5 2 3 15 8 4 5 15 8 2 3 15 8 3 2 5 4 6 4 5 4 1 4 14 25 1 5 1 2 14 25 1 5 14 25 1 2 14 25 5 2 14 25 7 98 25 24 22 ...