計算(能用簡便方法計算的用簡便方法計算)480(144 960 8)99 199 20195 32 1211)

2021-05-25 04:33:53 字數 3846 閱讀 5252

1樓:手機使用者

(1)480÷(144-960÷8)

=480÷(bai144-120)

=480÷24

=20;du

(2)99×

zhi199+199

=199×(99+1)

=199×100

=19900;

(3)25×32×125

=25×4×(8×125)

=100×1000

=100000;

(7)(dao768-68×11)÷回19=(768-748)÷19

=20÷19

=2019.答

脫式計算.(能用簡便方法計算的要用簡便方法計算) (1)13.6×3-40.6÷2 (2

2樓:風子

(bai1)13.6×

du3-40.6÷2,

zhi=40.8-20.3,

=20.5;dao

(2)99×0.75+1 4

×99 ,

=99×(0.75+0.25),

=99×1,

=99;

(3)(5 6

-5 8

)×24 ,

=5 6

×24-5 8

×24,

=20-15,

=5;(4)121×1001

121,

=121×(100+1

121),

=121×100+121×1

121,

=12100+1,

=12101;

(5)15÷3-7×(1 7

+1 21

) ,=15÷3-7×4

21,=5-11 3

,=32 3

;(6)246

23÷6-1

23,=41

23-1

23,=4.

計算下面各題.(能簡便的要用簡便方法計算)2.3+3.91÷(22-19.7)21.6÷[64.8-(48.6-2.7×2)]0.25×0

3樓:手機使用者

(1)2.3+3.91÷(22-19.7)=2.3+3.91÷2.3

=2.3+1.7

=4(2)21.6÷[64.8-(48.

6-2.7×2)]=21.6÷[64.

8-(48.6-5.4)]=21.

6÷[64.8-43.2]

=21.6÷21.6

=1(3)0.25×0.03×4

=(0.25×4)×0.03

=1×0.03

=0.03

0.13×3.89+0.13×5.11

=0.13×(3.89+5.11)

=0.13×9

=1.17

(5)10.1×87

=(10+0.1)×87

=10×87+0.1×87

=870+8.7

=878.7

計算下面各題.(能簡便的要用簡便方法計算) 332+68÷4 (574-442)÷12 24×125 114+48+86+52 469

4樓:吾陽珈藍

(1)332+68÷4,

=332+17,

=349;

(2)(574-442)÷12,

=132÷12,

=11;

(3)24×125,

=3×8×125,

=3×(8×125),

=3×1000,

=3000;

(4)114+48+86+52,

=(114+86)+(48+52),

=200+100,

=300;

(5)469×5×2,

=469×(5×2),

=469×10,

=4690;

(6)480÷15÷4,

=480÷(15×4),

=480÷60,=8.

用簡便方法計算下面各題。 1.3200÷4÷25 2.162×35-35×2 3.32×99+32

5樓:匿名使用者

1.3200÷4÷25

=3200÷(4x25)

=3200÷100=32

6樓:匿名使用者

3200÷4÷25

=3200÷(4x25)

=3200÷100

=32162×

內35-35×2

=(162-2)×容35

=160×5×7

=800×7

=5600

32×99+32

=32×(99+1)

=32×100

=3200

45×101-45

=45×(101-1)

=45×100

=4500

48×125

=6×(8×125)

=6×1000

=6000

7樓:小學數學崔老師

1.3200÷4÷25

=3200÷(4×

25)=3200÷100

=322.162×35-35×2

=(162-2)×35

=160×35

=5600

3.32×99+32

=32×(99+1)

=32×100

=3200

4.45×101-45

=45×(101-1)

=45×100

=4500

5.48×125

=6×8×125

=6×(8×125)

=6×1000

=6000

8樓:路人__黎

1、=3200÷dao(4×

25)=3200÷100=32

2、內=35×容(162-2)

=35×160=5600

3、=32×(99+1)

=32×100=3200

4、=45×(101-1)

=45×100=4500

5、=6×8×125

=6×1000=6000

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

9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.

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