計算下面各題(能簡算的要簡算)(1)36 17 51(2)48 125(3)84 184 84 84(4)10000 (59 62)

2021-04-30 04:13:56 字數 2904 閱讀 6711

1樓:斯元駒

(1)36×17÷51,

=612÷51,

=12;

(2)48×125,

=(40+8)×125,

=5000+1000,

=6000;

(3)84×184-84×84,

=84×(184-84),

=84×100,

=8400;

(4)10000-(59+62)×21,

=10000-121×21,

=10000-2541,

=7459.

計算下面各題.(能簡算的要簡算)(1)24×12+76×12 (2)87.5÷12.5÷8 (3)(78+34)÷18 (4)9

2樓:強顏歡笑丶炳

(1)24×制1

2+76×12,

=12×(76+24),=12

×100,

=50;

(2)87.5÷12.5÷8,

=87.5÷(12.5×8),

=87.5÷100,

=0.875;

(3(78+3

4)÷18,

=78×8+3

4×8,

=7+6,

=13;

(4)91+91×(2

13-17),

=91+91×2

13-91×17,

=91+14-13,

=92;

(5)2.2×101,

=2.2×(100+1),

=2.2×100+2.2×1,

=220+2.2,

=222.2;

(6)14.6-3.625-6.375,

=14.6-(3.625+6.375),

=14.6-10,

=4.6.

計算下面各題。(能簡算的要簡算) 1/3×5×2/5÷1/3 1/3×1/15+1

3樓:最美晴天小奕

你敢,很高興為您解答:

1、解:

原式=5×2/5×1/3÷1/3

=5×2/5×1/3×3

=2×1

=22、解:

原式=1/3×(1/15+1/5)

=1/3×4/15

=4/45

3、解:

原式=3.7×6/5+1.3×6/5

=(3.7+1.3)×6/5

=5×6/5

=64、解:

原式=3/4-(6/7-1/4)×17/9=(3/4+1/4-7/16)×17/9

=9/16×17/9

17/16

計算下面各題能簡算的要簡便計算.32÷(11.08-1.48)×0.811.1×3.58+11.1×5.42 17 20 -

4樓:star演奏9wf鰔

(1)32÷(11.08-1.48)×0.8,=32÷9.6×0.8,

=10 3

×0.8,

=8 3

;(2)11.1×3.58+11.1×5.42,=11.1×(3.58+5.42),

=11.1×9,

=99.9;

(3)17

20-3 5

+5 6

,=1 4

+5 6

,=13

12;(4)33 5

+711

-3 5

+411

,=(33 5

-3 5

)+(4

11+7

11),

=3+1,=4.

計算下面各題,能簡算的要簡算. 7×125×8 120-20×2+45 35×(32+128÷32) 43×36+36×57 6

5樓:魯步陽冰

(1)7×125×8

=7×(125×8)

=7×1000

=7000;

(2)120-20×2+45

=120-40+45

=80+45

=125;

(3)35×(32+128÷32)

=35×(32+4)

=35×36

=1260;

(4)43×36+36×57

=(43+57)×36

=100×36

=3600;

(5)640÷[4×(16-8)]

=640÷[4×8]

=640÷32

=20;

(6)68×101-68

=68×(101-1)

=68×100

=6800.

計算下面各題,能簡算的要簡算。 (1)3.8x4.2+38x0.58 (2)36[(5/6-2/3

6樓:樂為人師

(1)3.8x4.2+38x0.58

=38x0.42+38x0.58

=38x(0.42+0.58)

=38x1

=38(2)36×[(5/6-2/3)x3]=36×[1/6x3]

=36×1/2

=18(3)1.25x32x2.5

=(1.25x8)x(4x2.5)

=10x10

=100

(4)72000÷125÷8

=72000÷(125x8)

=72000÷1000=72

7樓:匿名使用者

38×(0.42+0.58)=3.8

181.25×4×(8×2.5)=20

72000÷(125×8)=72

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