Tinh nhanh 35.23+35.41+64.65
tính nhanh
a,12.35+35.182-35.94
b,35.23+35.41+64.65
a,12.35+35.182-35.94
=35.(12+182-94)
=35.100
=3500
b,35.23+35.41+64.65
=35.(23+41)+64.65
=35.64+64.65
=(35+65).64
=100.64
=6400
a, =(12+182-94).35=100.35=3 500
b, =35.(23+41)+64.65=35.64+64.65=64.(65+35)=64.100=6400
35.23 +35.41+ 64.65 =
35.23+35.41+64.65
=35.(23+41)+64.65
=35.64+64.65
=64.(35+65)
=64.100
=6400
35.23 + 35.41 + 64.65
= 35.(23 + 41) + 64.65
= 35.64 + 64.65
= 64.(35 + 65)
= 64.100
= 6400
Bài 1 tính nhanh
66.25 + 5.66 + 66.14 + 33.66
35.23 + 35.41 + 64.65
66.25 + 5.66 + 66.14 + 33.66
= 66. (25+5+14+33 )
= 66. 77
= 5082
35.23 + 35.41 + 64.65
= 35. ( 23 + 41 ) + 64.65
= 35. 64 + 64.65
= ( 35 + 65 ).64
= 100 . 64
= 6400
12.35+35.182-35.94
35.23+35.41+64.65
125.98-125.46-52.25
tính nhanh
ai nhanh mình k cho
số đó là
3927
còn mấy câu còn
lại bn tự lamg
nhé
a) 12.35+35.182-35.94
= 35.(12+182-94)
= 35.100
=3500
b) 35.23+35.41+64.65
= 35.(23+41)+64.65
= 35.64+64.65
=64.(35+65)
= 64.100
=6400
c) 125.98-125.46-52.125
= 125.(98-46-52)
= 125.0
=0
a 66.25 + 5.66 + 66.14 + 33.66
b 35.23 + 35.41 + 64.65
c 29.87 - 29.23 + 64.71
a) 66 . 25 + 5 . 66 + 66 . 14 + 33. 66
= 66 . ( 25 + 5 + 14 + 33 )
= 66 . 77
= 5082
b) 35 . 23 + 35 . 41 + 64 . 65
= 35 . ( 23 + 41 ) + 64 . 65
= 35 . 64 + 64 . 65
= 64 . ( 35 + 65 )
= 64 . 100
= 6400
c) 29 . 87 - 29 . 23 + 64 . 71
= 29 . ( 87 - 23 ) + 64 . 71
= 29 . 64 + 64 . 71
= 64 . ( 29 + 71 )
= 64 . 100
= 6400
66 x 25 + 5 x 66 + 66 x 14 + 33 x 66
= (25 + 5 + 14 + 33) x 66
= 77 x 66
= 5082
35 x 23 + 35 x 41 + 64 x 65
= [(23 + 41) x 35] + 64 x 65
= (64 x 35) + 4160
= 2240 + 4160
= 6400
29 x 87 - 29 x 23 + 64 x 71
= [(87 - 23) x 19] + 64 x 71
= (64 x 19) + 64 x 71
= 64 x 19 + 64 x 71
= (19 + 71) x 64
= 90 x 64
= 5760
cho mik sửa lại câu c
29 x 87 - 29 x 23 + 64 x 71
= (87 - 23) x 29 + 64 x 71
= 64 x 29 + 64 x 71
= 64 x (29 + 71)
= 64 x 100
= 6400
Tinh nhanh :
a) 5.23+35.41+64.65
b) 29.87-20.23+64.71
Tinh nhanh :
a) 5.23+35.41+64.65
=5.23+5.7.41+64.13.5
=5.(23+7.41+64.13)
=5.(23+287+832)
=5.(310+832)
=5.1142
=5710
tính nhanh a, 5.23+35.41+64.65
A)48.19+48.115+134.52
B)27.121-87.27+73.34
C)125.98-125.46-52.25
D)136.23+136.17-40.36
E)17.93+116.83+17.23
F)35.23+35.41+64.65
Giải hộ mk nha , mk đang vội >w<
Chú ý : Dấu chấm là dấu nhân nha :v
a. 48.19+48.115+134.52= 48.(19+115)+134.52= 48.134+134.52= 134.(48+52)= 134.100=13400
b. 27.121-87.27+73.34= 27.(121-87)+73.34= 27.34+73.34= 34.(27+73)= 34.100= 3400
c. 125.98-125.46-52.25=125.(98-46)-52.25= 125.52-52.25= (125-25).52= 100.52= 5200
d. 136.23+136.17-40.36= 136.(23+17)-40.36= 136.40-40.36= (136-36).40= 100.40= 4000
e. 17.93+116.83+17.23= 17.(93+23)+116.83= 17.116+116.83= 116.(17+83)= 116.100=1600
f. 35.23+35.41+64.65=35.(23+41)+64.65= 35.64+64.65= (35+65).64= 100.64=6400
a)=13400
b)=3400
c)5200
d)4000
e)11600
f)=6400
tck cho nha
25. 71 .50 . 4 .2
e) 48.19 + 48.115 + 134.52
f) 136.23 + 136.17
–
40.36;