14536 - 14540 : 5 - 479
Tìm X:
14536 - X = 3928
14536 - X = 3928
X = 14536 – 3928
X = 10608
Tìm y:
a, y − 4628 = 14536
b, y : 270 = 406
a, y − 4628 = 14536
y = 14536 + 4628
y = 19164
b, y : 270 = 406
y = 406 x 270
y = 109620
Tìm x :
a/ 14536 – x = 3928
b/ x : 255 = 203
a/
14536 – x = 3928
x = 14536 - 3928
x = 10608
b/ x : 255 = 203
x = 203 × 255
x = 51765
14536+67838=???
mk ms lap nick nen chan
kb vs mk nha
14536 + 67838 = 82374
Kb vs mk nè .
# MissyGirl #
479 - X x 5 = 896 : 4
479-X x 5= 224
X x 5= 479-224
X x 5= 255
X = 255:5
X = 51
479-X x 5= 224
X x 5= 479-224
X x 5= 255
X = 255:5
X = 51
479 - x × 5 = 896/4
479 - x × 5 = 224
x × 5 = 479 - 224
x × 5 = 255
x = 255 : 5
x = 51
Tính:
256 075 : 5 69 090 : 6 498 479 : 7
256 075 : 5 = 51 215
69 090 : 6 = 11 515
498 479 : 7 = 71 211 dư 2
256 075 : 5= 51215 69 090 : 6=11515 498 479 : 7=71211 (dư 2)
Cho 584 - X x 5 + 479 = 103 X = ...
1+1+9+5+4+6+4+7+8++69+258+479+565653+54564623456466+66666666666666666666666666666:8888888888
2Tính nhanh:
a) 152. 19 + 152. 81 b) 197. 50 – 50. 98 + 50
b) 1000 + (–470 ) + 3215 +(–530) c) – 479 – ( 2002 – 479 )
a) 152. 19 + 152. 81
= 152.( 19+ 81 )
= 152. 100
= 15200
b) 197. 50 – 50. 98 + 50
= 50.( 197 - 98 + 1)
= 50. 100
= 5000
b) 1000 + (–470 ) + 3215 +(–530)
= 1000 + [(–470 ) + (–530)] + 3215
= 1000 + (-1000) + 3215
= 0 + 3215
= 3215
c) – 479 – ( 2002 – 479 )
= – 479 - 2002 + 479
= [(– 479 + 479)] – 2002
= 0 - 2002
= -2002
2Tính nhanh:
a) 152. 19 + 152. 81 b) 197. 50 – 50. 98 + 50
=152.(19+81) =50.(197-98)+50
=152.100 =50.99+50
=1520 =5000
b) 1000 + (–470 ) + 3215 +(–530) c) – 479 – ( 2002 – 479 )
=1000+[ (–470 )+ (–530) ]+ 3215 =-479+2002+479
=1000+(-1000)+3215 =(-479+479)+2002
=0+3215 =0+2002
=3215 =2002