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10+10+10x5+5x10
=20+50+50
=70+50
=120
ai k mình mình k lại
ủng hộ nha
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50 x 10 + 50 x 10
= (50 + 50) x 10
= 100 x 10
= 1000
10 x 20 + 80 x 10
= (20 + 80) x 10
= 100 x 10
= 1000
\(50.10+50.10\)
\(=500+500\)
\(=1000\)
\(10.20+80.10\)
\(=10.\left(20+80\right)\)
\(=10.100\)
\(=1000\)
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20 x 10 + 70 x 10 + 10
= (20 + 70) x 10 + 10
= 90 x 10 + 10
= 900 + 10
= 910
20 x 10 + 70 x 10 + 10
= 20 x 10 + 70 x 10 + 10 x 1
= 10 x ( 20 + 70 + 1 )
= 10 x 91
= 910
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102 x 102 + 10 x 10
= 102 x 102 + 102
= 100 x 100 + 100
= 10000 + 100
= 10100
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50 x 2 + 8 x 50
= (2 + 8) x 50
= 10 x 50
= 500
10 + 10 + 10 + 50 + 50 + 10 + 10
= (10 x 5) + (50 + 50)
= 50 + 100
= 150
50 x 2 + 8 x 50
= 50 x ( 2 + 8 )
= 50 x 10
= 500
10 + 10 + 10 + 50 + 50 + 10 + 10
= 10 x 5 + 50 x 5
= 50 + 250
= 300
![](https://rs.olm.vn/images/avt/0.png?1311)
102 x 102 + 10 x 10
= 100 x 100 + 10 x 10
= 100 x 100 + 100
= 10000 + 100
= 10100
102 x 102 + 10 x 10
= 100 x 100 + 100
= 100 x (100 + 1)
= 100 x 101
= 10100
![](https://rs.olm.vn/images/avt/0.png?1311)
50 + 50 + 50 + 50 x 10 x 10 + 10
= (50 + 50) + 50 x 10 x 10 + 10
= 100 + 500 x 10 + 10
= 100 + 5000 + 10
= 5110
10 + 10 - 10 + 10 x 10
= 10 + 10 - 10 + 100
= 110
k cho mk nha pạn. mk pạn rùi
10 + 10 - 10 + 10 x 10
= 20 - 10 + 100
= 10 + 100
= 110
k mik