Question

Tính bằng cách thuận tiện nhất :

a)5*25*216*4

b)4*37*25*16

c)36*28+36*82+64*69+64*41

d)42*53+42*36+42*11

e)37*45+56*37-37

h)17+17*81+18*17

ai nhanh nhất đc 3 tick nha

Answer 1

a ) 5 x 216 x 25 x 4 = 1080 x 100 = 108000

b ) 37 x 16 x 25 x 4 = 592 x 100 = 59200

c ) 36 x ( 28 + 82 ) + 64 x ( 69 + 41 ) = 36 x 110 + 64 x 110 = ( 36 + 64 ) x 110 = 100 x 110 = 11000

d ) 42 x ( 53 + 36 + 11 ) = 42 x 100 = 4200

e) 37 x 45 + 56 x 37 - 37 x 1 = 37 x ( 45 + 56 - 1 ) = 37 x 100 = 3700

h) 17 x 1 + 17 x 81 + 18 x 17 = 17 x ( 1 + 81 + 18 ) = 17 x 100 = 1700

Mik nhanh nhất đấy , nhớ click cho mik nha !!!!!!!!!!!!!!!!!!!

Answer 2

a) 5 x 25 x 216 x 4

= ( 5 x 216 ) x ( 25 x 4 )

= 1080 x 100

= 108000

b) 4 x 37 x 25 x 16 

= ( 4 x 25 ) x ( 37 x 16 )

= 100 x 592 

= 59200

Answer 3

a)=(25x4)x5x216=100x5x216=500x216=108000

b)=(4x25)x37x16=100x37x16=3700x16=59200

c)=[36x(28+82)]+[64x(69+41)]=[36x110]+[64x110]=110x(36+64)=110x100=11000

d)=42x(53+36+11)=42x100=4200

e)=37x(45+56-1)=37x100=3700

h)=17x(1+81+18)=17x100=1700

k mk nhá

Answer 4

a)5*25*216*4=(25*4)*(5*216)=100*1080=108000

b)4*37*25*16=(4*25)*(37*16)=100*592=59200

c)36*28+36*82+64*69+64*41=36*(28+82)+64*(69+41)=36*110+64*110=110*(36+64)=110*100=11000

d)42*53+42*36+42*11=42*(53+36+11)=428*100=42800

e)37*45+56*37-37=37*(45+56-1)=37*100=3700

h)17+17*81+18*17=17*(1+81+17)=17*100=1700

Answer 5

( 4*25 ) * ( 5*216)

= 100 *  1080

= 108000