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X + 126 = 480
\(\Rightarrow\)X = 480 - 126 = 354
X - 209 = 435
\(\Rightarrow\)X = 435 + 209 = 644
a) 89 658 : x = 293
x = 89 658 : 293
x = 306
b) 54 322 : x =346
x = 54 322 : 346
x = 157
c)106 141 : x =413
x = 106 141 : 413
x = 257
a) 89 658 : x = 293
x = 89 658 : 293
x = 306
Vậy x = 306
b) 54 322 : x = 346
x = 54 322 : 346
x = 157
Vậy x = 157
c) 106 141 : x = 413
x = 106 141 : 413
x = 257
Vậy x = 257
a,456*65+456*34+456
=456*65+456*34+456*1
=456*(65+34+1)
=456*100
=45600
Bài 1 :
X x 405 = 86265 89658 : X = 293
X = 86265 : 405 X = 89658 : 293
X = 213 X = 306
\(a;x\times342=38646\)
\(x=38646:342\)
\(x=113\)
\(b;x:56=658\)
\(x=658\times56\)
\(x=36848\)
a, x*342=38646
x =38646\342
x =113
b, x\56=658
x =658*56
x =36848
a)1440:40 =36
b)205 x 13 =2665
c)2057
d)36 x 25 x 4 =3600
18 x 24 :9 =48
41 x 2 x 8 x 5 =3280
215 x 86 + 215 x 14 =21500
53 x 128 - 43 x 128 =1408
2/3 x 4/7 =8/21
2 x 3 x 4 / 2 x 3 x 4 x 5 =24/120
1 x 2 x 3 x 4 / 5 x 6 x 7 x 8=24/1680
x : 7/11 = 22
x =22 x 7/11
x =14
2/7 * x =2/3
x = 2/7 :2/3
x = 20/21
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Trả lời:
200 x 300 x 400 x 500 x 000 x 600 x 700 x 800 x 900 x 1000
= 0
k mik nha***
# Pé_Sushi #
\(x\times405=86265\)
\(x=86265:405\)
\(x\text{=}213\)
\(89658:x=293\)
\(x=89658:293\)
\(x\text{=}306\)
\(x+126=480\)
\(x=480-126\)
\(x=354\)
\(x-209\text{=}435\)
\(x\text{=}435+209\)
\(x\text{=}644\)
\(x:13=200+5\)
\(x:13\text{=}205\)
\(x\text{=}205\times13\)
\(x\text{=}2665\)
\(x\times40\text{=}26000-400\)
\(x\times40=25600\)
\(x\text{=}25600:40\)
\(x\text{=}640\)
\(962456-x=342\times7\)
\(962456-x=2394\)
\(x\text{=}962456-2394\)
\(x\text{=}960062\)