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

2021-04-30 04:24:33 字數 1971 閱讀 6951

1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.

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

2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,能簡便計算的要用簡便方法計算. 296+73+104+37 1600÷25÷4 125×54-46×125 50

3樓:憽人戾

(1)296+73+104+37,

=(296+104)+(73+37),

=400+110,

=510;

(2)1600÷25÷4,

=1600÷(25×4),

=1600÷100,

=16;

(3)125×54-46×125,

=125×(54-46),

=125×8,

=1000;

(4)50.34+11.645-42.34,=50.34-42.34+11.645,

=8+11.645,

=19.645;

(5)125×25×32,

=125×25×4×8,

=(125×8)×(25×4),

=1000×100,

=100000;

(6)99+99×99,

=99×(1+99),

=99×100,

=9900.

計算下列各題,要寫出主要計算過程,能簡便的要用簡便方法計算.①113+360÷24-18 &nb...

4樓:手機使用者

①113+360÷24-18

=113+15-18

=128-18

=110;

②bai8.5×du2.8+2.8×1.5=(zhi8.5+1.5)×

dao2.8

=10×2.8

=28;

③(14+29

)×36=14

×36+2

9×36

=9+8

=17;④(回

13+12

)÷答(1-38)

=56÷58

=43.

計算下面各題,能簡算的要用簡便方法計算

80 12 4 3 80 12 3 回4 80 16 64 60 180 20 5 60 90 5 14515.37 2.8 2.2 15.37 2.8 2.2 15.37 5 10.37 19.92 10.35 9.92 19.92 9.92 10.35 10 10.35 20.35 42 4 2...

計算下面各題,能簡便的要簡便計算3 72

1 3.72 5.3 7.28 3.7,3.72 7.28 5.3 3.7 11 9,20 2 7000 125 8,7000 125 8 7000 1000,7 3 1600 600 75 25,1600 8 25,1592 25,1617 4 35 125 16,35 2 125 8 70 10...

計算下面各題,能簡便計算的用簡便方法計算

1 4.82 5.2 0.8 0.6,4.82 6.5 0.6,4.82 3.9,0.92 2 1 2 34 3 5 710,12 320 710,7 20 710,12 3 79 5 11 29 5 11,79 29 511 1 511,511 4 12.3 99,12.3 100 1 12.3 ...