47895 : 685
47895+156x9=
47 895 + 156 x 9 = 47 895 + 1404
= 49 299
47895 + 156 x 9
= 47895 + ( 156 x 9 )
= 47895 + 1404
= 49299
47895+333=?
kb vs mk nha
>; <; =?
a) 5 760 ? 5 699 7 849 ? 8 700
b) 9 999 ? 10 001 10 100 ? 10 080
c) 74 685 ? 74 685 90 537 ? 90 357
a) 5760 > 5699
7849 < 8700
b) 9999 < 10001
10100 > 10080
c) 74685 = 74685
90537 > 90357
Bài 1) Tính nhanh :
( -137 ) . 685 + ( -685 ) . ( -37 )
Bài 2) Tìm x :
( -72 ) : | x - 5 : ( -3 ) | = ( -2 )3
Bài 1:
(-137).685+(-685).(-37)
=(-137).685+685.37
=(-137+37).685
=(-100).685
=-68500
Bài 2:
(-72):|x-5:(-3)|=(-2)3
=>(-72):|x-\(\frac{-5}{3}\)|=-8
=>|x-\(\frac{-5}{3}\)|=9
TH1:x-\(\frac{-5}{3}\)=-9
=>x=(-9)+\(\frac{-5}{3}\)
=>x=\(\frac{-32}{3}\)
TH2:x-\(\frac{-5}{3}\)=9
=>x=9+\(\frac{-5}{3}\)
=>x=\(\frac{22}{3}\)
X:68+685=754
1 = 2
2 = 10
3 = 30
4 = 68
5 = ?
1 = 2
2 = 10
3 = 30
4 = 68
5 = 130
x+685=245 x 4
\(x+685=245\times4\)
\(x+685=990\)
\(x=990-685=305\)
x + 685 = 245 x 4
x + 685 = 245 × 4 x + 685 =245 × 4
x + 685 = 990 x + 685 = 990
x = 990 − 685 = 305
(-315) +135 + (-315 +685)
(-315) + 135 +( - 315 + 685)
= -315 + 135 - 315 + 685
= ( 135 + 685 ) - ( 315+315)
= 820 - 630
= 190
=-280+303
=23
#Châu's ngốc
\(-315+135+\left(-315+685\right)\)
\(=-180+370\)
\(=190\)
595+685+256x0=bao nhiêu?