Tính Nhanh
a. 146x273+437x273+273z418-273
b.43x37+43x73+57x66+57x44
c.48x19+48x115+137x52
d.4x325x6+4x69x24+3x399x8
e.58x27+54x71
tính nhanh
48x19+48x115+134x52
17x93+116.83+17x23
35x23+35x41+64x65
mấy bn giúp mik nka ai nhanh nhất mik tick
a) 48 x 19 + 48 x 115 + 134 x 52
= 48 x ( 19 + 115 ) + 134 x 52
= 48 x 134 + 134 x 52
= ( 48 + 52 ) x 134
= 100 x 134
= 13 400
b) 17 x 93 + 116 x 83 + 17 x 23
= 17 x 93 + 17 x 23 + 116 x 83
= 17 x ( 93 + 23 ) + 116 x 83
= 17 x 116 + 116 x 83
= ( 17 + 83 ) x 116
= 100 x 116
= 11 600
c) 35 x 23 + 35 x 41 + 64 x 65
= 35 x ( 23 + 41 ) + 64 x 65
= 35 x 64 + 64 x 65
= ( 35 + 65 ) x 64
= 100 x 64
= 6 400
48x19+48x115+134x52= ?
48 x 19 + 48 x 115 + 134 x 52
= 48 x (19+115) + 134 x 52
= 48 x 134 + 124 x 52
= 134 x ( 48 + 52)
= 134 x 100
= 13400
48 x 19 + 48 x 115 + 134 x 52 = 912 + 5520 + 6968
= 13350
Ai click cho mik , mik click lại cho !!!!!!!!!!!!!!!!!!!!!!!!!
48 x 19 + 48 x 115 + 134 x 52
= 48 x ( 19 + 115 ) + 134 x 52
= 48 x 134 + 134 x 52
= ( 48 + 52 ) x 134
= 100 x 134
= 13400
48x19+48x115+134x52
tính nhanh
a,27x121-87x27+73x34
b,48x19+134x52+48x115
c,65+891+135+909/731-47+69-253
d,18x123+9x4576x2+3x5310x6/1+4+7+.............+55+58-410
a) 27.121-87.27+73.34
=27.(121-87)+73.34
=27.34+73.34
=34(27+73)
=34.100
=3400
b) 48.19+134.52+48.115
=48.19+48.115+134.52
=48(19+115)+134.52
=48.134+134.52
=134(48+52)
=134.100
=13400
c) 65+891+135+909/731-47+69-253
VT:(65+135)+(891+909)
=200+1800
=2000
VP:(731+69)-(253+47)
=800-300
=500
2000/500=4
d)18.123+9.4576.2+3.5310.6/1+4+7+..+55+58-410
VT:18.123+18.4567+18.5310
=18(123+4567+5310)
=18.10009
=18(10000+9)
=180000
VP:Tổng : 1+4+7+...+55+58
Có số số hạng là :
(58-1):3+1=20( số )
Tổng bằng : (58+1).20:2=590
590-410=180
180000:180=1000
Mình chữa câu d tí 9.4576.2 là sai ;;; 9.4567.2 mới đúng
tinh nhanh
a.48x19+48x115+134x52
b.27x121-87x27+73x34
c.125x98-125x46-52x25
d.136x23+136x17-40x36
e.17x93+116x83+17x23
g.19x27+47x81+19x20
h,87x23+13x93+70x87
a)\(48x19+48x115+134x52\)
\(=48x\left(19+115\right)+134x52\)
\(=48x132+132x52\)
\(=132x\left(48+52\right)\)
\(=132x100=13200\)
b)\(27x121-87x27+73x34\)
\(=27x\left(121-87\right)+73x34\)
\(=27x34+73x34\)
\(=34x\left(27+73\right)\)
\(=34x100=3400\)
c)\(125x98-125x46-52x25\)
\(=125x\left(98-46\right)-52x25\)
\(=125x52-52x25\)
\(=52x\left(125-25\right)\)
\(=52x100=5200\)
d)\(136x23+136x17-40x36\)
\(=136x\left(23+17\right)-40x36\)
\(=136x40-40x36\)
\(=40x\left(136-36\right)\)
\(=40x100=4000\)
e)\(17x93+116x83+17x23\)
\(=17x\left(93+23\right)+116x83\)
\(=17x116+116x83\)
\(=116x\left(17+83\right)\)
\(=116x100=11600\)
g)\(19x27+47x81+19x20\)
\(=19x\left(27+20\right)+47x81\)
\(=19x47+47x81\)
\(=47x\left(19+81\right)\)
\(=47x100=4700\)
h)\(87x23+13x93+70x87\)
\(=87x\left(23+70\right)+13x93\)
\(=87x93+13x93\)
\(=93x\left(87+13\right)\)
\(=93x100=9300\)
Mk đã mất công zậy rùi nên mong mọi người k mk nhé
a) = 13400
b) = 4714
c) = 5200
d) = 4000
e) = 11600
g) = 4700
h) = 9300
tinh nhanh
a,48x19+48x115+124x52
b.27x121-87x27+73x34
c.125x98-125x46-52x25
d,136x23+136x17-40x36
e,17x93+116x83+17x23
g,19x27+47x81+19x20
h,87x23+13x93+70x87
cac ban oi nhung so nao tach ra de tinh nhanh duoc thi cac ban hay tach ra nha cam on nhieu ai nhanh mik cho 1 like
a,48x19+48x115+124x52
=48x(19+115)+124x52
=48x124+124x52
=124x(48+52)
=124x100
=12400
b,27x121-87x27+73x34
=27x(121-87)+73x34
=27x34+73x34
=34x(27+73)
=34x100
=3400
c,125x98-125x46-52x25
=125x(98-46)-52x25
=125x52-52x25
=52x(125-25)
=52x100
=5200
d,136x23+136x17-40x36
=136x(23+17)-40x36
=136x40-40x36
=40x(136-36)
=40x100
=4000
e,17x93+116x83+17x23
=17x93+17x23+116x83
=17x(93+23)+116x83
=17x116+116x83
=116x(17+83)
=116x100
=11600
g,19x27+47x81+19x20
=19x27+19x20+47x81
=19x(27+20)+47x81
=19x47+47x81
=47x(19+81)
=47x100
=4700
h,87x23+13x93+70x87
=87x23+70x87+13x93
=87x(23+70)+13x93
=87x93+13x93
=93x(87+13)
=93x100
=9300
Nhớ like mik nhé!^-^ Mất bao thời gian của mik đấy!
tính nhanh
43x37
tính bằng tay nhanh ghi lời giải
Áp dụng hằng đẳng thức: (a+b)(a-b) = a2 - b2
Vậy 43 x 37 = (40+3)(40-3) = 402 - 32 = 1600 - 9 = 1591
tính nhanh:
24x62+48x19
24 x 62 + 48 x 19
=24 x 62 + 24 x 2 x 19
=24 x ( 62 + 2 x 19)
= 24 x ( 62 +38)
= 24 x 100
= 2400
24X62+48X19
=24X62+(24X2)X19
=24X62+24X(2X19)
=24X62+24X38
=24X(62+38)
=24X100=2400
24 x 62 + 48 x 19 = 24 x 62 + 24 x 38
= 24 x ( 62 + 38 )
= 24 x 100 = 24000
Tính nhanh các biểu thức sau:
A= 20162016x2004-20042004x2016
B= (92 x53 x23):(23 x32)x20060
C= 2x325x12+4x69x24-3x389:8